diff --git a/SLS_C/build.py b/SLS_C/build.py
index 02786f1..4ee04c0 100644
--- a/SLS_C/build.py
+++ b/SLS_C/build.py
@@ -84,6 +84,8 @@ def run(cmd):
 
 
 def is_up_to_date(src, obj, dep):
+    if "meta" in [src.stem, obj.stem, dep.stem]:
+        return False
     if not obj.exists():
         return False
     if dep.exists() and dep.stat().st_mtime > obj.stat().st_mtime: