diff --git a/compiler-rt/lib/fuzzer/FuzzerLoop.cpp b/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
--- a/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
@@ -12,6 +12,7 @@
 #include "FuzzerIO.h"
 #include "FuzzerInternal.h"
 #include "FuzzerMutate.h"
+#include "FuzzerPlatform.h"
 #include "FuzzerRandom.h"
 #include "FuzzerTracePC.h"
 #include <algorithm>
diff --git a/compiler-rt/lib/fuzzer/FuzzerSHA1.cpp b/compiler-rt/lib/fuzzer/FuzzerSHA1.cpp
--- a/compiler-rt/lib/fuzzer/FuzzerSHA1.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerSHA1.cpp
@@ -17,6 +17,7 @@
 
 #include "FuzzerSHA1.h"
 #include "FuzzerDefs.h"
+#include "FuzzerPlatform.h"
 
 /* This code is public-domain - it is based on libcrypt
  * placed in the public domain by Wei Dai and other contributors.