diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 23f246e..450fbf5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -45,7 +45,7 @@ jobs:
 
       - name: build hipo
         run: |
-	  cmake -S hipo_src -B hipo_build --install-prefix $HIPO
+	  cmake -S hipo_src -B hipo_build -DCMAKE_INSTALL_PREFIX=$HIPO
           cmake --build hipo_build
           cmake --install hipo_build