diff --git a/base-unicode-symbols.cabal b/base-unicode-symbols.cabal
--- a/base-unicode-symbols.cabal
+++ b/base-unicode-symbols.cabal
@@ -1,5 +1,5 @@
 name:          base-unicode-symbols
-version:       0.2.1.2
+version:       0.2.1.3
 cabal-version: >=1.6
 build-type:    Simple
 stability:     provisional
@@ -39,7 +39,7 @@
   default: False
 
 library
-  if !flag(old-base)
+  if flag(old-base)
     build-depends: base >= 3.0 && < 4.4
   else
     build-depends: base >= 3.0.3.1 && < 4.4