diff --git a/library/Text/Builder.hs b/library/Text/Builder.hs
--- a/library/Text/Builder.hs
+++ b/library/Text/Builder.hs
@@ -56,6 +56,9 @@
 instance Semigroup Builder where
   (<>) = mappend
 
+instance IsString Builder where
+  fromString = string
+
 {-# INLINE char #-}
 char :: Char -> Builder
 char x =
diff --git a/text-builder.cabal b/text-builder.cabal
--- a/text-builder.cabal
+++ b/text-builder.cabal
@@ -1,5 +1,5 @@
 name: text-builder
-version: 0.5.2
+version: 0.5.3
 category: Text
 synopsis: An efficient strict text builder
 homepage: https://github.com/nikita-volkov/text-builder