diff --git a/.github/workflows/custom-board-build/action.yaml b/.github/workflows/custom-board-build/action.yaml
index f1b9ec9ae1..33d7979850 100644
--- a/.github/workflows/custom-board-build/action.yaml
+++ b/.github/workflows/custom-board-build/action.yaml
@@ -142,7 +142,8 @@ runs:
         echo "RUN_SIMULATOR=${{toJSON(inputs.run_simulator)}}" >> $GITHUB_ENV
         echo "REF=${{github.ref_name}}" >> $GITHUB_ENV
         echo "${{ inputs.ADDITIONAL_ENV }}" >> $GITHUB_ENV
-        which realpath >/dev/null 2>&1 || (which grealpath >/dev/null 2>&1 && alias realpath='grealpath')
+        shopt -s expand_aliases
+        if which grealpath >/dev/null 2>&1; then alias realpath='grealpath'; fi
         echo "META_OUTPUT_ROOT_FOLDER=$(realpath --relative-to=${{inputs.rusefi_dir}}/firmware ${{inputs.meta_output}})/" >> $GITHUB_ENV
         echo "SIM_OUTPUT_ROOT_FOLDER=$(realpath --relative-to=${{inputs.rusefi_dir}}/firmware ${{inputs.sim_output}})/" >> $GITHUB_ENV
         source ${{inputs.rusefi_dir}}/firmware/config/boards/common_script_read_meta_env.inc "${{inputs.meta_info}}"
diff --git a/firmware/bin/gen_image_board.sh b/firmware/bin/gen_image_board.sh
index 39f4c23c21..39561e4d23 100644
--- a/firmware/bin/gen_image_board.sh
+++ b/firmware/bin/gen_image_board.sh
@@ -4,7 +4,8 @@ BOARD_DIR=${1:-$BOARD_DIR}
 SHORT_BOARD_NAME=${2:-$SHORT_BOARD_NAME}
 INI=${3:-"rusefi_$SHORT_BOARD_NAME.ini"}
 
-which realpath >/dev/null 2>&1 || (which grealpath >/dev/null 2>&1 && alias realpath='grealpath')
+shopt -s expand_aliases
+if which grealpath >/dev/null 2>&1; then alias realpath='grealpath'; fi
 FDIR=$(realpath $(dirname "$0")/..)
 BOARD_DIR=$(realpath --relative-to "$FDIR" "$BOARD_DIR")
 
diff --git a/firmware/gen_config_board.sh b/firmware/gen_config_board.sh
index d58d209564..9c80c6b205 100755
--- a/firmware/gen_config_board.sh
+++ b/firmware/gen_config_board.sh
@@ -31,7 +31,8 @@ fi
 
 echo "BOARD_DIR=${BOARD_DIR} SHORT_BOARD_NAME=${SHORT_BOARD_NAME}"
 
-which realpath >/dev/null 2>&1 || (which grealpath >/dev/null 2>&1 && alias realpath='grealpath')
+shopt -s expand_aliases
+if which grealpath >/dev/null 2>&1; then alias realpath='grealpath'; fi
 FDIR=$(realpath $(dirname "$0"))
 BOARD_DIR=$(realpath --relative-to "$FDIR" "$BOARD_DIR")