diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b2b0217..0fca82c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,11 +23,6 @@ jobs:
       - name: Add msys64 to path
         run: |
           echo C:\msys64\usr\bin >> $env:GITHUB_PATH
-      - name: wget bgb
-        shell: bash
-        run: |
-          wget https://bgb.bircd.org/bgbw64.zip
-          unzip bgbw64.zip
       - name: pip install
         shell: bash
         run: |
diff --git a/tests/Makefile b/tests/Makefile
index 3e8134d..c7a64ce 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -7,6 +7,8 @@ TESTS    		 = $(wildcard *.c)
 OBJS     		 = $(TESTS:%.c=$(BLDDIR)/%.o)
 TESTROMS     = $(TESTS:%.c=$(BLDDIR)/%.gb)
 
+BGBDIR = ../bgb
+
 
 all: clean mkdirs build-all
 
@@ -18,7 +20,12 @@ clean:
 mkdirs:
 	mkdir -p $(BLDDIR)
 
-$(BLDDIR)/%.gb: $(MYDIR)/%.c mkdirs
+$(BGBDIR):
+	wget https://bgb.bircd.org/bgbw64.zip
+	unzip -jo -qq bgbw64.zip  -d ../bgb
+	rm bgbw64.zip
+
+$(BLDDIR)/%.gb: $(MYDIR)/%.c mkdirs $(BGBDIR)
 	$(CC) -o $@ $<
 
 .PHONY: build-all