1 files changed, 4 insertions, 1 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index a1321d0227..7ac51d7bd7 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -19793,7 +19793,10 @@ void ex_function(exarg_T *eap)
 
     /* insert the new function in the function list */
     STRCPY(fp->uf_name, name);
-    hash_add(&func_hashtab, UF2HIKEY(fp));
+    if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL) {
+        xfree(fp);
+        goto erret;
+    }
   }
   fp->uf_refcount = 1;
   fp->uf_args = newargs;