diff --git a/pkgs/stdenv/generic/default.nix b/pkgs/stdenv/generic/default.nix
index 4d2200d19714..8cd1dc29d612 100644
--- a/pkgs/stdenv/generic/default.nix
+++ b/pkgs/stdenv/generic/default.nix
@@ -97,7 +97,6 @@ let
                || result.system == "armv5tel-linux"
                || result.system == "ict_loongson-2_v0.3_fpu_v0.1-linux";
         isSunOS = result.system == "i386-sunos";
-        isSunOS = result.system == "i386-sunos";
         isi686 = result.system == "i686-linux"
                || result.system == "i686-darwin"
                || result.system == "i686-freebsd"