diff --git a/byg/src/SiteGenerator.hs b/byg/src/SiteGenerator.hs
index 833b13b..24c7c21 100644
--- a/byg/src/SiteGenerator.hs
+++ b/byg/src/SiteGenerator.hs
@@ -6,7 +6,7 @@ import DependencyGenerator
 handleRecipeDir :: Token FilePath -> Token Template -> Token FilePath -> DepGenM ()
 handleRecipeDir outputDir template dir = do
   dirContents <- listDirectory dir
-  (bases, exts) <- unzipDepGenM (mapDepGenM fileComponents dirContents)
+  exts <- unzipSndDepGenM (mapDepGenM fileComponents dirContents)
   areImageFilenames <- mapDepGenM isImageExtension exts
   imageFilenames <- filterDepGenM areImageFilenames dirContents
   convertedImageFilenames <- mapDepGenM convertedImageFilename imageFilenames