diff --git a/pkgs/data/icons/numix-icon-theme-circle/default.nix b/pkgs/data/icons/numix-icon-theme-circle/default.nix
index ef7c5476fc61..b3413dc4738d 100644
--- a/pkgs/data/icons/numix-icon-theme-circle/default.nix
+++ b/pkgs/data/icons/numix-icon-theme-circle/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   package-name = "numix-icon-theme-circle";
   
-  name = "${package-name}-${version}";
+  name = "${package-name}-20150304";
 
   buildInputs = [ unzip ];
   
@@ -17,8 +17,8 @@ stdenv.mkDerivation rec {
   dontBuild = true;
 
   installPhase = ''
-    install -dm 755 $out/usr/share/icons
-    cp -dr --no-preserve='ownership' Numix-Circle{,-Light} $out/usr/share/icons/
+    install -dm 755 $out/share/icons
+    cp -dr --no-preserve='ownership' Numix-Circle{,-Light} $out/share/icons/
   '';
   
   meta = {
diff --git a/pkgs/data/icons/numix-icon-theme/default.nix b/pkgs/data/icons/numix-icon-theme/default.nix
index cd515f11f5df..d6ca570ba52c 100644
--- a/pkgs/data/icons/numix-icon-theme/default.nix
+++ b/pkgs/data/icons/numix-icon-theme/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
 
   package-name = "numix-icon-theme";
   
-  name = "${package-name}-${version}";
+  name = "${package-name}-20150302";
 
   buildInputs = [ unzip ];
   
@@ -17,8 +17,8 @@ stdenv.mkDerivation rec {
   dontBuild = true;
 
   installPhase = ''
-    install -dm 755 $out/usr/share/icons
-    cp -dr --no-preserve='ownership' Numix{,-Light} $out/usr/share/icons/
+    install -dm 755 $out/share/icons
+    cp -dr --no-preserve='ownership' Numix{,-Light} $out/share/icons/
   '';
   
   meta = {