diff --git a/thirdparty/sdd.c b/thirdparty/sdd.c
index a31c4f6..644b3ca 100644
--- a/thirdparty/sdd.c
+++ b/thirdparty/sdd.c
@@ -1,6 +1,5 @@
 // Derived from gingerBill's public domain gb_string.h file.
 #include "sdd.h"
-#include <assert.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>