diff --git a/srcpkgs/mozjs24/patches/char_ptr_nul.patch b/srcpkgs/mozjs24/patches/char_ptr_nul.patch
new file mode 100644
index 00000000000..7f0bcd227d4
--- /dev/null
+++ b/srcpkgs/mozjs24/patches/char_ptr_nul.patch
@@ -0,0 +1,11 @@
+--- js/src/shell/jsoptparse.cpp	2013-10-29 21:40:20.000000000 +0100
++++ js/src/shell/jsoptparse.cpp	2017-06-14 13:00:24.076799935 +0200
+@@ -253,7 +253,7 @@
+     char *eq = strchr(argv[*i], '=');
+     if (eq) {
+         *value = eq + 1;
+-        if (value[0] == '\0')
++        if (*value[0] == '\0')
+             return error("A value is required for option %.*s", eq - argv[*i], argv[*i]);
+         return Okay;
+     }