diff --git a/src/core/lib/gpr/posix/sync.cc b/src/core/lib/gpr/posix/sync.cc
index c3cf035ba4d..d3a3dbcbb15 100644
--- a/src/core/lib/gpr/posix/sync.cc
+++ b/src/core/lib/gpr/posix/sync.cc
@@ -155,5 +155,5 @@ void gpr_once_init(gpr_once* once, void (*init_function)(void)) {
   GPR_ASSERT(pthread_once(once, init_function) == 0);
 }
 
-#endif  // defined(GPR_POSIX_SYNC) && !defined(GPR_ABSEIL_SYNC) && \
+#endif  // defined(GPR_POSIX_SYNC) && !defined(GPR_ABSEIL_SYNC) &&
        // !defined(GPR_CUSTOM_SYNC)
diff --git a/src/core/lib/gpr/windows/sync.cc b/src/core/lib/gpr/windows/sync.cc
index f06c73efb04..a08e26b7240 100644
--- a/src/core/lib/gpr/windows/sync.cc
+++ b/src/core/lib/gpr/windows/sync.cc
@@ -118,5 +118,5 @@ void gpr_once_init(gpr_once* once, void (*init_function)(void)) {
   InitOnceExecuteOnce(once, run_once_func, &arg, &phony);
 }
 
-#endif  // defined(GPR_WINDOWS) && !defined(GPR_ABSEIL_SYNC) && \
+#endif  // defined(GPR_WINDOWS) && !defined(GPR_ABSEIL_SYNC) &&
        // !defined(GPR_CUSTOM_SYNC)
diff --git a/src/core/lib/iomgr/grpc_if_nametoindex_posix.cc b/src/core/lib/iomgr/grpc_if_nametoindex_posix.cc
index fe1ada03592..fdc738630f1 100644
--- a/src/core/lib/iomgr/grpc_if_nametoindex_posix.cc
+++ b/src/core/lib/iomgr/grpc_if_nametoindex_posix.cc
@@ -39,5 +39,5 @@ uint32_t grpc_if_nametoindex(char* name) {
   return out;
 }
 
-#endif  // GRPC_IF_NAMETOINDEX == 1 && \
+#endif  // GRPC_IF_NAMETOINDEX == 1 &&
        // defined(GRPC_POSIX_SOCKET_IF_NAMETOINDEX)
diff --git a/src/core/lib/iomgr/grpc_if_nametoindex_unsupported.cc b/src/core/lib/iomgr/grpc_if_nametoindex_unsupported.cc
index 5555cad6d1b..d95efa50470 100644
--- a/src/core/lib/iomgr/grpc_if_nametoindex_unsupported.cc
+++ b/src/core/lib/iomgr/grpc_if_nametoindex_unsupported.cc
@@ -35,5 +35,5 @@ uint32_t grpc_if_nametoindex(char* name) {
   return 0;
 }
 
-#endif  // GRPC_IF_NAMETOINDEX == 0 || \
+#endif  // GRPC_IF_NAMETOINDEX == 0 ||
        // !defined(GRPC_POSIX_SOCKET_IF_NAMETOINDEX)
diff --git a/test/core/security/credentials_test.cc b/test/core/security/credentials_test.cc
index ad58ccd394f..a62b9daa1d1 100644
--- a/test/core/security/credentials_test.cc
+++ b/test/core/security/credentials_test.cc
@@ -1944,7 +1944,7 @@ TEST(CredentialsTest, TestGetWellKnownGoogleCredentialsFilePath) {
   // so we set it to some fake value
   restore_home_env = true;
   SetEnv("HOME", "/fake/home/for/bazel");
-#endif  // defined(GRPC_BAZEL_BUILD) && (defined(GPR_POSIX_ENV) || \
+#endif  // defined(GRPC_BAZEL_BUILD) && (defined(GPR_POSIX_ENV) ||
        // defined(GPR_LINUX_ENV))
   std::string path = grpc_get_well_known_google_credentials_file_path();
   GPR_ASSERT(!path.empty());