diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index 50f9e4b6..239b97b5 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -1229,6 +1229,7 @@ static bool vkd3d_dxil_build_entry(struct vkd3d_shader_library_entry_point *entr
     if (!entry->plain_entry_point)
     {
         vkd3d_free(entry->mangled_entry_point);
+        entry->mangled_entry_point = NULL;
         return false;
     }