diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 86eb641..d69c9bf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,11 +29,11 @@ jobs:
         run: phpize
       - name: configure with bundled library
         run: |
-          configure --enable-md4c
+          ./configure --enable-md4c
         if: ${{ ! matrix.library }}
       - name: configure with library
         run: |
-          configure --enable-md4c --enable-system-libmd4c
+          ./configure --enable-md4c --enable-system-libmd4c
         if: ${{ matrix.library }}
       - name: make
         run: make