3 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/compilers/julia/1.0.nix b/pkgs/development/compilers/julia/1.0.nix
index 78f7c2ef1b9..0325632ad0a 100644
--- a/pkgs/development/compilers/julia/1.0.nix
+++ b/pkgs/development/compilers/julia/1.0.nix
@@ -123,7 +123,7 @@ stdenv.mkDerivation rec {
     let
       arch = stdenv.lib.head (stdenv.lib.splitString "-" stdenv.system);
       march = {
-        x86_64 = stdenv.hostPlatform.gcc.arch or "x86-64";
+        x86_64 = stdenv.hostPlatform.platform.gcc.arch or "x86-64";
         i686 = "pentium4";
         aarch64 = "armv8-a";
       }.${arch}
diff --git a/pkgs/development/compilers/julia/1.3.nix b/pkgs/development/compilers/julia/1.3.nix
index 2a270b7c72c..8096af0b320 100644
--- a/pkgs/development/compilers/julia/1.3.nix
+++ b/pkgs/development/compilers/julia/1.3.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
     let
       arch = head (splitString "-" stdenv.system);
       march = {
-        x86_64 = stdenv.hostPlatform.gcc.arch or "x86-64";
+        x86_64 = stdenv.hostPlatform.platform.gcc.arch or "x86-64";
         i686 = "pentium4";
         aarch64 = "armv8-a";
       }.${arch}
diff --git a/pkgs/development/compilers/julia/1.5.nix b/pkgs/development/compilers/julia/1.5.nix
index 778a9c3a9d7..be3cfc39635 100644
--- a/pkgs/development/compilers/julia/1.5.nix
+++ b/pkgs/development/compilers/julia/1.5.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
     let
       arch = head (splitString "-" stdenv.system);
       march = {
-        x86_64 = stdenv.hostPlatform.gcc.arch or "x86-64";
+        x86_64 = stdenv.hostPlatform.platform.gcc.arch or "x86-64";
         i686 = "pentium4";
         aarch64 = "armv8-a";
       }.${arch}