diff --git a/xpcom/libxpt/tools/xpt_dump.c b/xpcom/libxpt/tools/xpt_dump.c
index 239509ed1731083485d3da50af053ac38c5885b2..7ed8d119ce5320378c17267dbf58f7e602c9f270 100644
--- a/xpcom/libxpt/tools/xpt_dump.c
+++ b/xpcom/libxpt/tools/xpt_dump.c
@@ -23,9 +23,7 @@
 #include "xpt_xdr.h"
 #include <stdio.h>
 #include <sys/stat.h>
-#ifndef WIN32
-#include <unistd.h>
-#endif
+#include <stdlib.h>
 #include <string.h>
 #include "prprf.h"
 
diff --git a/xpcom/typelib/xpt/tools/xpt_dump.c b/xpcom/typelib/xpt/tools/xpt_dump.c
index 239509ed1731083485d3da50af053ac38c5885b2..7ed8d119ce5320378c17267dbf58f7e602c9f270 100644
--- a/xpcom/typelib/xpt/tools/xpt_dump.c
+++ b/xpcom/typelib/xpt/tools/xpt_dump.c
@@ -23,9 +23,7 @@
 #include "xpt_xdr.h"
 #include <stdio.h>
 #include <sys/stat.h>
-#ifndef WIN32
-#include <unistd.h>
-#endif
+#include <stdlib.h>
 #include <string.h>
 #include "prprf.h"