diff --git a/H/Yap.h b/H/Yap.h
index 2116618da..67baeea26 100644
--- a/H/Yap.h
+++ b/H/Yap.h
@@ -243,7 +243,7 @@ extern char Yap_Option[20];
 #elif defined(__APPLE__) && !__LP64__
 #define MMAP_ADDR 0x20000000
 #else
-#define MMAP_ADDR 0x08800000
+#define MMAP_ADDR 0x02000000
 #endif
 #elif __svr4__ || defined(__SVR4)
 #define MMAP_ADDR 0x02000000