diff --git a/libc/src/sys/epoll/epoll_pwait.h b/libc/src/sys/epoll/epoll_pwait.h
@@ -10,8 +10,8 @@
 #define LLVM_LIBC_SRC_SYS_EPOLL_EPOLL_PWAIT_H
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/sigset_t.h"
-// #include "llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/sigset_t.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/src/sys/epoll/epoll_pwait2.h b/libc/src/sys/epoll/epoll_pwait2.h
@@ -10,9 +10,9 @@
 #define LLVM_LIBC_SRC_SYS_EPOLL_EPOLL_PWAIT2_H
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/sigset_t.h"
-// #include "llvm-libc-types/struct_epoll_event.h"
-// #include "llvm-libc-types/struct_timespec.h"
+// #include "include/llvm-libc-types/sigset_t.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/struct_timespec.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/src/sys/epoll/epoll_wait.h b/libc/src/sys/epoll/epoll_wait.h
@@ -10,7 +10,7 @@
 #define LLVM_LIBC_SRC_SYS_EPOLL_EPOLL_WAIT_H
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/src/sys/epoll/linux/epoll_pwait.cpp b/libc/src/sys/epoll/linux/epoll_pwait.cpp
@@ -15,8 +15,8 @@
 #include <sys/syscall.h> // For syscall numbers.
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/sigset_t.h"
-// #include "llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/sigset_t.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/src/sys/epoll/linux/epoll_pwait2.cpp b/libc/src/sys/epoll/linux/epoll_pwait2.cpp
@@ -15,9 +15,9 @@
 #include <sys/syscall.h> // For syscall numbers.
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/sigset_t.h"
-// #include "llvm-libc-types/struct_epoll_event.h"
-// #include "llvm-libc-types/struct_timespec.h"
+// #include "include/llvm-libc-types/sigset_t.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/struct_timespec.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/src/sys/epoll/linux/epoll_wait.cpp b/libc/src/sys/epoll/linux/epoll_wait.cpp
@@ -14,8 +14,8 @@
 #include <sys/syscall.h> // For syscall numbers.
 
 // TODO: Use this include once the include headers are also using quotes.
-// #include "llvm-libc-types/sigset_t.h"
-// #include "llvm-libc-types/struct_epoll_event.h"
+// #include "include/llvm-libc-types/sigset_t.h"
+// #include "include/llvm-libc-types/struct_epoll_event.h"
 
 #include <sys/epoll.h>
 

diff --git a/libc/test/UnitTest/CMakeLists.txt b/libc/test/UnitTest/CMakeLists.txt
@@ -26,8 +26,7 @@ function(add_unittest_framework_library name)
       ${TEST_LIB_SRCS}
       ${TEST_LIB_HDRS}
     )
-    target_include_directories(${lib} PUBLIC 
-                               ${LIBC_SOURCE_DIR} ${LIBC_SOURCE_DIR}/include)
+    target_include_directories(${lib} PUBLIC ${LIBC_SOURCE_DIR})
     list(APPEND compile_options -fno-exceptions -fno-rtti)
     if(TARGET libc.src.time.clock)
       target_compile_definitions(${lib} PRIVATE TARGET_SUPPORTS_CLOCK)

diff --git a/libc/test/UnitTest/LibcTest.cpp b/libc/test/UnitTest/LibcTest.cpp
@@ -8,7 +8,7 @@
 
 #include "LibcTest.h"
 
-#include "llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-macros/stdfix-macros.h"
 #include "src/__support/CPP/string.h"
 #include "src/__support/CPP/string_view.h"
 #include "src/__support/UInt128.h"

diff --git a/libc/test/include/stdbit_test.cpp b/libc/test/include/stdbit_test.cpp
@@ -88,7 +88,7 @@ bool stdc_has_single_bit_ul(unsigned long) noexcept { return false; }
 bool stdc_has_single_bit_ull(unsigned long long) noexcept { return false; }
 }
 
-#include "llvm-libc-macros/stdbit-macros.h"
+#include "include/llvm-libc-macros/stdbit-macros.h"
 
 TEST(LlvmLibcStdbitTest, TypeGenericMacroLeadingZeros) {
   EXPECT_EQ(stdc_leading_zeros(static_cast<unsigned char>(0U)), 0xAAU);

diff --git a/libc/test/include/stdckdint_test.cpp b/libc/test/include/stdckdint_test.cpp
@@ -8,7 +8,7 @@
 
 #include "test/UnitTest/Test.h"
 
-#include "llvm-libc-macros/stdckdint-macros.h"
+#include "include/llvm-libc-macros/stdckdint-macros.h"
 
 TEST(LlvmLibcStdCkdIntTest, Add) {
   int result;

diff --git a/libc/test/include/sys/queue_test.cpp b/libc/test/include/sys/queue_test.cpp
@@ -10,7 +10,7 @@
 #include "src/__support/char_vector.h"
 #include "test/UnitTest/Test.h"
 
-#include "llvm-libc-macros/sys-queue-macros.h"
+#include "include/llvm-libc-macros/sys-queue-macros.h"
 
 using LIBC_NAMESPACE::CharVector;
 using LIBC_NAMESPACE::cpp::string;

diff --git a/libc/test/integration/startup/CMakeLists.txt b/libc/test/integration/startup/CMakeLists.txt
@@ -31,7 +31,6 @@ function(add_startup_test target_name)
     ${fq_target_name}
     PRIVATE
       ${LIBC_SOURCE_DIR}
-      ${LIBC_SOURCE_DIR}/include
       ${LIBC_BUILD_DIR}
       ${LIBC_BUILD_DIR}/include
   )

diff --git a/libc/test/integration/startup/gpu/rpc_interface_test.cpp b/libc/test/integration/startup/gpu/rpc_interface_test.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm-libc-types/test_rpc_opcodes_t.h"
+#include "include/llvm-libc-types/test_rpc_opcodes_t.h"
 #include "src/__support/GPU/utils.h"
 #include "src/__support/RPC/rpc_client.h"
 #include "test/IntegrationTest/test.h"

diff --git a/libc/test/integration/startup/gpu/rpc_stream_test.cpp b/libc/test/integration/startup/gpu/rpc_stream_test.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm-libc-types/test_rpc_opcodes_t.h"
+#include "include/llvm-libc-types/test_rpc_opcodes_t.h"
 #include "src/__support/GPU/utils.h"
 #include "src/__support/RPC/rpc_client.h"
 #include "src/__support/integer_to_string.h"

diff --git a/libc/test/integration/startup/gpu/rpc_test.cpp b/libc/test/integration/startup/gpu/rpc_test.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm-libc-types/test_rpc_opcodes_t.h"
+#include "include/llvm-libc-types/test_rpc_opcodes_t.h"
 #include "src/__support/GPU/utils.h"
 #include "src/__support/RPC/rpc_client.h"
 #include "test/IntegrationTest/test.h"

diff --git a/libc/test/src/__support/fixed_point/fx_bits_test.cpp b/libc/test/src/__support/fixed_point/fx_bits_test.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-macros/stdfix-macros.h"
 
 #include "src/__support/fixed_point/fx_bits.h"
 #include "src/__support/integer_literals.h"

diff --git a/libc/test/src/compiler/stack_chk_guard_test.cpp b/libc/test/src/compiler/stack_chk_guard_test.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm-libc-macros/signal-macros.h"
+#include "include/llvm-libc-macros/signal-macros.h"
 #include "src/__support/macros/sanitizer.h"
 #include "src/compiler/__stack_chk_fail.h"
 #include "src/string/memset.h"

diff --git a/libc/test/src/math/differential_testing/CMakeLists.txt b/libc/test/src/math/differential_testing/CMakeLists.txt
@@ -47,7 +47,6 @@ function(add_diff_binary target_name)
     ${fq_target_name}
     PRIVATE
       ${LIBC_SOURCE_DIR}
-      ${LIBC_SOURCE_DIR}/include
   )
   if(DIFF_COMPILE_OPTIONS)
     target_compile_options(

diff --git a/libc/utils/LibcTableGenUtil/CMakeLists.txt b/libc/utils/LibcTableGenUtil/CMakeLists.txt
@@ -5,5 +5,5 @@ add_llvm_library(
   DISABLE_LLVM_LINK_LLVM_DYLIB
   LINK_COMPONENTS Support TableGen
 )
-target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR} ${LIBC_SOURCE_DIR}/include)
+target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR})
 target_include_directories(LibcTableGenUtil PRIVATE ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
diff --git a/libc/utils/gpu/loader/Loader.h b/libc/utils/gpu/loader/Loader.h
@@ -11,7 +11,7 @@
 
 #include "utils/gpu/server/llvmlibc_rpc_server.h"
 
-#include "llvm-libc-types/test_rpc_opcodes_t.h"
+#include "include/llvm-libc-types/test_rpc_opcodes_t.h"
 
 #include <cstddef>
 #include <cstdint>