diff --git a/.github/workflows/build_release_extra.yml b/.github/workflows/build_release_extra.yml
index e94ede2..ce315bc 100644
--- a/.github/workflows/build_release_extra.yml
+++ b/.github/workflows/build_release_extra.yml
@@ -97,17 +97,17 @@ jobs:
       - name: Build
         run: |
           cd cmd/verysimple
-          make -f Makefile_r_gui build BUILD_VERSION=${{ github.event.inputs.tagName }}
+          make -f Makefile_r_gui.mk build BUILD_VERSION=${{ github.event.inputs.tagName }}
 
       - if: ${{ matrix.os  != 'macos-latest' }}
         name: tar (!macos)
         run: |
-          cd cmd/verysimple && make -f Makefile_r_gui pack PACKNAME=${{ env.ASSET_NAME }}
+          cd cmd/verysimple && make -f Makefile_r_gui.mk pack PACKNAME=${{ env.ASSET_NAME }}
       
       - if: ${{ matrix.os  == 'macos-latest' }}
         name: gtar (macos)
         run: |
-          cd cmd/verysimple && make -f Makefile_r_gui pack_gtar PACKNAME=${{ env.ASSET_NAME }}
+          cd cmd/verysimple && make -f Makefile_r_gui.mk pack_gtar PACKNAME=${{ env.ASSET_NAME }}
 
       - name: touch xz archive
         shell: bash
diff --git a/cmd/verysimple/Makefile_gui b/cmd/verysimple/Makefile_gui.mk
similarity index 100%
rename from cmd/verysimple/Makefile_gui
rename to cmd/verysimple/Makefile_gui.mk
diff --git a/cmd/verysimple/Makefile_r_gui b/cmd/verysimple/Makefile_r_gui.mk
similarity index 65%
rename from cmd/verysimple/Makefile_r_gui
rename to cmd/verysimple/Makefile_r_gui.mk
index b3aa87c..8e9d5bc 100644
--- a/cmd/verysimple/Makefile_r_gui
+++ b/cmd/verysimple/Makefile_r_gui.mk
@@ -6,9 +6,9 @@ build:
 	go build -tags "gui $(tags)"  -trimpath -ldflags "-X 'main.Version=${BUILD_VERSION}' -s -w -buildid="
 	
 pack:
-    tar -cJf ${PACKNAME}.tar.xz verysimple* -C ../../ examples/
+	tar -cJf ${PACKNAME}.tar.xz verysimple* -C ../../ examples/
 	rm verysimple*
 
 pack_gtar:
-    gtar -cJf ${PACKNAME}.tar.xz verysimple* -C ../../ examples/
-    rm verysimple*
\ No newline at end of file
+	gtar -cJf ${PACKNAME}.tar.xz verysimple* -C ../../ examples/
+	rm verysimple*
\ No newline at end of file