diff --git a/libc/src/time/nanosleep.cpp b/libc/src/time/nanosleep.cpp
index fe042fc0f1c60..ef20f28b639b9 100644
--- a/libc/src/time/nanosleep.cpp
+++ b/libc/src/time/nanosleep.cpp
@@ -20,7 +20,7 @@ LLVM_LIBC_FUNCTION(int, nanosleep,
                    (const struct timespec *req, struct timespec *rem)) {
   int ret = __llvm_libc::syscall_impl(SYS_nanosleep, req, rem);
   if (ret < 0) {
-    errno = -ret;
+    libc_errno = -ret;
     return -1;
   }
   return ret;
diff --git a/libc/test/integration/src/unistd/CMakeLists.txt b/libc/test/integration/src/unistd/CMakeLists.txt
index 1abe01697ab54..046dc6c4bfbfe 100644
--- a/libc/test/integration/src/unistd/CMakeLists.txt
+++ b/libc/test/integration/src/unistd/CMakeLists.txt
@@ -10,8 +10,8 @@ add_integration_test(
   STARTUP
     libc.startup.linux.crt1
   DEPENDS
-    libc.include.errno
     libc.src.__support.CPP.string_view
+    libc.src.errno.errno
     libc.src.stdlib.getenv
     libc.src.unistd.getcwd
 )
diff --git a/libc/test/integration/src/unistd/getcwd_test.cpp b/libc/test/integration/src/unistd/getcwd_test.cpp
index 96af6dc2e3a7c..3214ebf7085cf 100644
--- a/libc/test/integration/src/unistd/getcwd_test.cpp
+++ b/libc/test/integration/src/unistd/getcwd_test.cpp
@@ -7,12 +7,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/__support/CPP/string_view.h"
+#include "src/errno/libc_errno.h"
 #include "src/stdlib/getenv.h"
 #include "src/unistd/getcwd.h"
 
 #include "test/IntegrationTest/test.h"
 
-#include <errno.h>
 #include <stdlib.h> // For malloc and free
 
 using __llvm_libc::cpp::string_view;
@@ -30,13 +30,13 @@ TEST_MAIN(int argc, char **argv, char **envp) {
   // Bad size
   cwd = __llvm_libc::getcwd(buffer, 0);
   ASSERT_TRUE(cwd == nullptr);
-  ASSERT_EQ(errno, EINVAL);
-  errno = 0;
+  ASSERT_EQ(libc_errno, EINVAL);
+  libc_errno = 0;
 
   // Insufficient size
   cwd = __llvm_libc::getcwd(buffer, 2);
   ASSERT_TRUE(cwd == nullptr);
-  int err = errno;
+  int err = libc_errno;
   ASSERT_EQ(err, ERANGE);
 
   return 0;