diff --git a/LibcSearcher.py b/LibcSearcher.py
index 341f29c..0896cce 100755
--- a/LibcSearcher.py
+++ b/LibcSearcher.py
@@ -47,9 +47,12 @@ def decided(self):
         for ff in files:
             fd = open(db + ff, "rb")
             data = fd.read().decode(errors='ignore').split("\n")
+            not_match = False
             for x in res:
-                if any(map(lambda line: x.match(line), data)):
-                    result.append(ff)
+                if not any(map(lambda line: x.match(line), data)):
+                    not_match = True
+            if not not_match:
+                result.append(ff)
             fd.close()
 
         if len(result) == 0: