diff --git a/hakyll.cabal b/hakyll.cabal
--- a/hakyll.cabal
+++ b/hakyll.cabal
@@ -1,5 +1,5 @@
 Name:               hakyll
-Version:            2.4.2
+Version:            2.4.3
 
 Synopsis:           A simple static site generator library.
 Description:        A simple static site generator library, mainly aimed at
diff --git a/src/Text/Hakyll/Tags.hs b/src/Text/Hakyll/Tags.hs
--- a/src/Text/Hakyll/Tags.hs
+++ b/src/Text/Hakyll/Tags.hs
@@ -149,7 +149,7 @@
     minCount = minimum . map snd . tagCount
     maxCount = maximum . map snd . tagCount
     relative tagMap count = (count - minCount tagMap) /
-                            (maxCount tagMap - minCount tagMap)
+                            (1 + maxCount tagMap - minCount tagMap)
 
     tagCount = map (second $ fromIntegral . length) . M.toList