diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 235b7e4..fbdfc36 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -14,6 +14,6 @@ jobs:
       with:
         java-version: 1.8
     - name: export display
-      run: export DISPLAY=:99.0
+      run: "export DISPLAY=:99.0"
     - name: Build with Maven
       run: mvn package --file pom.xml