diff --git a/library/ccm.c b/library/ccm.c
index 6700dc743..6b137d7bf 100644
--- a/library/ccm.c
+++ b/library/ccm.c
@@ -91,7 +91,7 @@ int mbedtls_ccm_setkey(mbedtls_ccm_context *ctx,
     }
 #endif
 
-    return 0;
+    return ret;
 }
 
 /*