diff --git a/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp b/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp
--- a/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp
+++ b/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp
@@ -8,6 +8,9 @@
 
 #include "gwp_asan/common.h"
 
+#include <sys/syscall.h>
+#include <unistd.h>
+
 namespace gwp_asan {
 
 uint64_t getThreadID() {
diff --git a/compiler-rt/lib/gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp b/compiler-rt/lib/gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp
--- a/compiler-rt/lib/gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp
+++ b/compiler-rt/lib/gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp
@@ -15,7 +15,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
-#include <sys/syscall.h>
 #include <sys/types.h>
 #include <unistd.h>