diff --git a/flake.nix b/flake.nix
index a1de14a..8a21581 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,8 +30,9 @@
         {
           packages = with pkgs;
             [
-              pkgsCross.arm-embedded.stdenv.cc
-              pkgsCross.arm-embedded.buildPackages.gdb
+              # pkgsCross.arm-embedded.stdenv.cc
+              # pkgsCross.arm-embedded.buildPackages.gdb
+              gcc-arm-embedded-13 # replaces above packages since gcc compiles libc in arm, not thumb2
               segger-jlink
               clang-tools
               cmake