diff --git a/pkgs/development/compilers/go/1.13.nix b/pkgs/development/compilers/go/1.13.nix
index 48e4d9bdc6c..a158e1d4d3b 100644
--- a/pkgs/development/compilers/go/1.13.nix
+++ b/pkgs/development/compilers/go/1.13.nix
@@ -186,8 +186,11 @@ stdenv.mkDerivation rec {
 
     export PATH=$(pwd)/bin:$PATH
 
+    ${optionalString (stdenv.buildPlatform != stdenv.targetPlatform) ''
     # Independent from host/target, CC should produce code for the building system.
+    # We only set it when cross-compiling.
     export CC=${buildPackages.stdenv.cc}/bin/cc
+    ''}
     ulimit -a
   '';
 
diff --git a/pkgs/development/compilers/go/1.14.nix b/pkgs/development/compilers/go/1.14.nix
index 95a602025d9..6ddd61253a4 100644
--- a/pkgs/development/compilers/go/1.14.nix
+++ b/pkgs/development/compilers/go/1.14.nix
@@ -193,8 +193,11 @@ stdenv.mkDerivation rec {
 
     export PATH=$(pwd)/bin:$PATH
 
+    ${optionalString (stdenv.buildPlatform != stdenv.targetPlatform) ''
     # Independent from host/target, CC should produce code for the building system.
+    # We only set it when cross-compiling.
     export CC=${buildPackages.stdenv.cc}/bin/cc
+    ''}
     ulimit -a
   '';