diff --git a/bunz.cabal b/bunz.cabal
--- a/bunz.cabal
+++ b/bunz.cabal
@@ -1,5 +1,5 @@
 name:                bunz
-version:             0.0.6
+version:             0.0.7
 synopsis:            CLI tool to beautify JSON string.
 description:         CLI tool to beautify JSON string.
 homepage:            https://github.com/sendyhalim/bunz
diff --git a/src/Beautifier.hs b/src/Beautifier.hs
--- a/src/Beautifier.hs
+++ b/src/Beautifier.hs
@@ -47,11 +47,11 @@
 stripStart' :: B.Builder -> B.Builder
 stripStart' =  liftToBuilder T.stripStart
 
-space :: T.Text
-space = " "
+spaceIndentation :: T.Text
+spaceIndentation = "  "
 
 indentation :: IndentationLevel -> B.Builder
-indentation level = B.fromLazyText (T.replicate level space)
+indentation level = B.fromLazyText (T.replicate level spaceIndentation)
 
 newline :: B.Builder
 newline = B.fromLazyText "\n"