diff --git a/.github/scripts/verifyExecutable.sh b/.github/scripts/verifyExecutable.sh
index f63c08a..6ffa535 100755
--- a/.github/scripts/verifyExecutable.sh
+++ b/.github/scripts/verifyExecutable.sh
@@ -4,7 +4,7 @@ set -e
 ./target/https-intercept > intercept.log 2>&1 &
 interceptPID="$!"
 
-sleep 3
+sleep 4
 curl_result="$(curl --connect-to example.com:1337:127.0.0.1 https://example.com:1337 --cacert root.pem -i)"
 
 kill "$interceptPID"
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cf717ce..c0ca650 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,9 +16,13 @@ jobs:
     - name: Build image
       run: mvn -Pnative package
     - name: verify executable
+      id: verify
       run: |
         ./certs.sh
         ./.github/scripts/verifyExecutable.sh
+    - name: check log if error
+      if: ${{ failure() && steps.verify.conclusion == 'failure' }}
+      run: cat intercept.log
     - uses: actions/upload-artifact@v4
       with:
         path: target/https-intercept