diff --git a/pkgs/development/compilers/go/1.14.nix b/pkgs/development/compilers/go/1.14.nix
index b467c998c3e..9c7d70e63e4 100644
--- a/pkgs/development/compilers/go/1.14.nix
+++ b/pkgs/development/compilers/go/1.14.nix
@@ -1,7 +1,8 @@
 { stdenv, fetchurl, tzdata, iana-etc, runCommand
 , perl, which, pkgconfig, patch, procps, pcre, cacert, Security, Foundation
 , mailcap, runtimeShell
-, buildPackages, pkgsTargetTarget
+, buildPackages
+, pkgsBuildTarget
 , fetchpatch
 }:
 
@@ -25,8 +26,12 @@ let
     "armv5tel" = "arm";
     "armv6l" = "arm";
     "armv7l" = "arm";
+    "powerpc64le" = "ppc64le";
   }.${platform.parsed.cpu.name} or (throw "Unsupported system");
 
+  # We need a target compiler which is still runnable at build time,
+  # to handle the cross-building case where build != host == target
+  targetCC = pkgsBuildTarget.targetPackages.stdenv.cc;
 in
 
 stdenv.mkDerivation rec {
@@ -166,11 +171,11 @@ stdenv.mkDerivation rec {
   # {CC,CXX}_FOR_TARGET must be only set for cross compilation case as go expect those
   # to be different from CC/CXX
   CC_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}cc"
+      "${targetCC}/bin/${targetCC.targetPrefix}cc"
     else
       null;
   CXX_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}c++"
+      "${targetCC}/bin/${targetCC.targetPrefix}c++"
     else
       null;
 
diff --git a/pkgs/development/compilers/go/1.15.nix b/pkgs/development/compilers/go/1.15.nix
index 8dd48e3396e..ca08ee190c2 100644
--- a/pkgs/development/compilers/go/1.15.nix
+++ b/pkgs/development/compilers/go/1.15.nix
@@ -1,7 +1,8 @@
 { stdenv, fetchurl, tzdata, iana-etc, runCommand
 , perl, which, pkgconfig, patch, procps, pcre, cacert, Security, Foundation
 , mailcap, runtimeShell
-, buildPackages, pkgsTargetTarget
+, buildPackages
+, pkgsBuildTarget
 , fetchpatch
 }:
 
@@ -25,8 +26,12 @@ let
     "armv5tel" = "arm";
     "armv6l" = "arm";
     "armv7l" = "arm";
+    "powerpc64le" = "ppc64le";
   }.${platform.parsed.cpu.name} or (throw "Unsupported system");
 
+  # We need a target compiler which is still runnable at build time,
+  # to handle the cross-building case where build != host == target
+  targetCC = pkgsBuildTarget.targetPackages.stdenv.cc;
 in
 
 stdenv.mkDerivation rec {
@@ -169,11 +174,11 @@ stdenv.mkDerivation rec {
   # {CC,CXX}_FOR_TARGET must be only set for cross compilation case as go expect those
   # to be different from CC/CXX
   CC_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}cc"
+      "${targetCC}/bin/${targetCC.targetPrefix}cc"
     else
       null;
   CXX_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}c++"
+      "${targetCC}/bin/${targetCC.targetPrefix}c++"
     else
       null;