diff --git a/compiler/fme-apply/src/RandomString.h b/compiler/fme-apply/src/RandomString.h
index 0f3533459eb..c147b7c3e2c 100644
--- a/compiler/fme-apply/src/RandomString.h
+++ b/compiler/fme-apply/src/RandomString.h
@@ -17,6 +17,7 @@
 #ifndef __FME_APPLY_RANDOM_STRING_H__
 #define __FME_APPLY_RANDOM_STRING_H__
 
+#include <cstdint>
 #include <string>
 
 namespace fme_apply