diff --git a/rts/linker/MachO.c b/rts/linker/MachO.c
index 805731ba56c06094c3fe2096a7443d15102ddd56..e54e7e44ac50d1e2654a222ea8d8ad720d6361c5 100644
--- a/rts/linker/MachO.c
+++ b/rts/linker/MachO.c
@@ -11,6 +11,7 @@
 #include "linker/MachO.h"
 #include "linker/CacheFlush.h"
 #include "linker/SymbolExtras.h"
+#include "linker/MMap.h"
 
 #include <string.h>
 #include <regex.h>