diff --git a/extras/jar_mod.h b/extras/jar_mod.h
index 9438e08c..6d5b465f 100644
--- a/extras/jar_mod.h
+++ b/extras/jar_mod.h
@@ -84,6 +84,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h> // comment this line out if you have bool defined somewhere else
+#include <string.h>  // For memset()
 
 
 #ifdef __cplusplus