diff --git a/fuzz-commit-graph.c b/fuzz-commit-graph.c
index 9fd1c04edd..430817214d 100644
--- a/fuzz-commit-graph.c
+++ b/fuzz-commit-graph.c
@@ -12,7 +12,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 	initialize_the_repository();
 	g = parse_commit_graph((void *)data, size);
 	repo_clear(the_repository);
-	free(g);
+	free_commit_graph(g);
 
 	return 0;
 }