1 files changed, 1 insertions, 0 deletions
diff --git a/tests/Main.hs b/tests/Main.hs
index 2c2717a..adcb613 100644
--- a/tests/Main.hs
+++ b/tests/Main.hs
@@ -12,6 +12,7 @@ import Template
 import Util
 
 -- | Run all tests.
+main :: IO ()
 main = defaultMain [ compressCssGroup
                    , fileGroup
                    , pageGroup