diff --git a/runahead/dirty_input.c b/runahead/dirty_input.c
index 0c5b1b2ac4..f58c9c412a 100644
--- a/runahead/dirty_input.c
+++ b/runahead/dirty_input.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 #include <boolean.h>
 
 #include "../core.h"
diff --git a/runahead/mem_util.c b/runahead/mem_util.c
index 7f7876f169..6d807236e7 100644
--- a/runahead/mem_util.c
+++ b/runahead/mem_util.c
@@ -1,3 +1,5 @@
+#include <stdlib.h>
+
 #include "mem_util.h"
 
 void *malloc_zero(size_t size)
diff --git a/runahead/mem_util.h b/runahead/mem_util.h
index b02f8d8b20..d91047244f 100644
--- a/runahead/mem_util.h
+++ b/runahead/mem_util.h
@@ -1,7 +1,6 @@
 #ifndef __MEM_UTIL__
 #define __MEM_UTIL__
 
-#include <malloc.h>
 #include <stddef.h>
 #include <string.h>
 
diff --git a/runahead/secondary_core.c b/runahead/secondary_core.c
index 08d4bdcefb..524ebccbda 100644
--- a/runahead/secondary_core.c
+++ b/runahead/secondary_core.c
@@ -1,7 +1,6 @@
 #if defined(HAVE_DYNAMIC) && HAVE_DYNAMIC
 
 #include <string.h>
-#include <malloc.h>
 #include <time.h>
 
 #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX)