diff --git a/pkgs/development/libraries/icu/make-icu.nix b/pkgs/development/libraries/icu/make-icu.nix
index d7fe46041607..7e137003b030 100644
--- a/pkgs/development/libraries/icu/make-icu.nix
+++ b/pkgs/development/libraries/icu/make-icu.nix
@@ -8,9 +8,9 @@ let
 
   pname = "icu4c";
 
-  release = lib.replaceStrings [ "." ] [ "-" ] version;
+  #release = lib.replaceStrings [ "." ] [ "-" ] version;
   # To test rc versions of ICU replace the line above with the line below.
-  #release = lib.replaceStrings [ "." ] [ "-" ] (if lib.hasSuffix "rc" version then lib.replaceStrings [ "1" ] [ "" ] version else version);
+  release = lib.replaceStrings [ "." ] [ "-" ] (if lib.hasSuffix "rc" version then lib.replaceStrings [ "1" ] [ "" ] version else version);
 
   baseAttrs = {
     src = fetchurl {