diff --git a/qa/coccinelle/banned-functions.cocci b/qa/coccinelle/banned-functions.cocci
index 03f3438536..82d116b089 100644
--- a/qa/coccinelle/banned-functions.cocci
+++ b/qa/coccinelle/banned-functions.cocci
@@ -1,5 +1,5 @@
 @banned@
-identifier func =~ "^(sprintf|strcat|strcpy|strncpy|strncat)$";
+identifier func =~ "^(sprintf|strcat|strcpy|strncpy|strncat|strndup|strchrdup)$";
 position p1;
 @@