diff --git a/rtengine/cJSON.c b/rtengine/cJSON.c
index 31c43dd2e..cf5ebef56 100644
--- a/rtengine/cJSON.c
+++ b/rtengine/cJSON.c
@@ -31,6 +31,7 @@
 #include <limits.h>
 #include <ctype.h>
 #include "cJSON.h"
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
 
 static const char *ep;