diff --git a/conformance/conformance_cpp.cc b/conformance/conformance_cpp.cc
index df3f2acd29e7..b865cd93ed6b 100644
--- a/conformance/conformance_cpp.cc
+++ b/conformance/conformance_cpp.cc
@@ -33,7 +33,7 @@
 #include <unistd.h>
 
 #include "conformance.pb.h"
-#include "google/protobuf/test_messages_proto3.pb.h"
+#include <google/protobuf/test_messages_proto3.pb.h>
 #include <google/protobuf/util/json_util.h>
 #include <google/protobuf/util/type_resolver_util.h>
 
diff --git a/conformance/conformance_test.cc b/conformance/conformance_test.cc
index d162f4ea8d05..fd8aab8b153f 100644
--- a/conformance/conformance_test.cc
+++ b/conformance/conformance_test.cc
@@ -34,7 +34,7 @@
 
 #include "conformance.pb.h"
 #include "conformance_test.h"
-#include "google/protobuf/test_messages_proto3.pb.h"
+#include <google/protobuf/test_messages_proto3.pb.h>
 
 #include <google/protobuf/stubs/common.h>
 #include <google/protobuf/stubs/stringprintf.h>
diff --git a/src/google/protobuf/compiler/js/well_known_types_embed.cc b/src/google/protobuf/compiler/js/well_known_types_embed.cc
index b589ccb5d1a0..71fd557f9fca 100755
--- a/src/google/protobuf/compiler/js/well_known_types_embed.cc
+++ b/src/google/protobuf/compiler/js/well_known_types_embed.cc
@@ -1,4 +1,4 @@
-#include "google/protobuf/compiler/js/well_known_types_embed.h"
+#include <google/protobuf/compiler/js/well_known_types_embed.h>
 struct FileToc well_known_types_js[] = {
 {"any.js",
   "// Protocol Buffers - Google's data interchange format\n"