diff --git a/testlib.py b/testlib.py
index 67acf45..79d9ceb 100644
--- a/testlib.py
+++ b/testlib.py
@@ -229,7 +229,7 @@ def stringToInt(self, buffer):
         if length > 1 and buffer[0] == '-':
             minus = True
         if length > 20:
-            self.quitf(Outcome.PE, "Expected integer, but \"{}}\" found".format(testlib_part(buffer)))
+            self.quitf(Outcome.PE, "Expected integer, but \"{}\" found".format(testlib_part(buffer)))
         retval = 0
         zeroes = 0
         processing_zeroes = True