diff --git a/test/HolyProject/StringUtils/Test.hs b/test/HolyProject/StringUtils/Test.hs
index 1635723..c1dad5e 100644
--- a/test/HolyProject/StringUtils/Test.hs
+++ b/test/HolyProject/StringUtils/Test.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE FlexibleContexts #-}
 module HolyProject.StringUtils.Test
 ( stringUtilsSuite
 ) where