diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index ab01fa8..b846e0a 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -34,6 +34,8 @@ jobs:
 
     - run: ./build_kernel.sh
       env:
+        CROSS_COMPILE: "ccache ${{ github.workspace }}/tools/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-"
+        CC: "ccache ${{ github.workspace }}/tools/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-gcc"
         KBUILD_BUILD_USER: uuuuuuuuuuuuuuuuuuuuuuuuuuuuu
         KBUILD_BUILD_HOST: hhhhhhhhhhhhhhhhhhhhhhhhhhhhh
         KBUILD_BUILD_TIMESTAMP: yyyyyyyyyyyyyyyyyyyyyyyyyyyyy
diff --git a/build_kernel.sh b/build_kernel.sh
index 1f42afc..9c12b16 100755
--- a/build_kernel.sh
+++ b/build_kernel.sh
@@ -20,9 +20,9 @@ $DIR/tools/extract_tools.sh
 
 # Build parameters
 export ARCH=arm64
-export CROSS_COMPILE="ccache $TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-"
-# export CC="ccache $TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-gcc"
-# export LD=$TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-ld.bfd
+export CROSS_COMPILE=${CROSS_COMPILE:-"$TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-"}
+export CC=${CC:-"$TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-gcc"}
+export LD=$TOOLS/aarch64-linux-gnu-gcc/bin/aarch64-linux-gnu-ld.bfd
 
 # these do anything?
 export KCFLAGS="-w"