diff --git a/source/blender/blenlib/BLI_fileops.h b/source/blender/blenlib/BLI_fileops.h
index fa5a4acc66a..93842731ab7 100644
--- a/source/blender/blenlib/BLI_fileops.h
+++ b/source/blender/blenlib/BLI_fileops.h
@@ -120,7 +120,7 @@ bool   BLI_file_older(const char *file1, const char *file2) ATTR_WARN_UNUSED_RES
 
 /* read ascii file as lines, empty list if reading fails */
 struct LinkNode *BLI_file_read_as_lines(const char *file) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
-void   BLI_file_free_lines(struct LinkNode *lines) ATTR_NONNULL();
+void   BLI_file_free_lines(struct LinkNode *lines);
 
 /* this weirdo pops up in two places ... */
 #if !defined(WIN32)