diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d07906991fc9..c64ac69639fe 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 name: Build
-on: push
+on:
+  - push
+  - pull_request
 jobs:
   build:
     name: compile