diff --git a/.gitlab-ci-files/job-uitests.yml b/.gitlab-ci-files/job-uitests.yml
index 2c4961b38..ca83c05d7 100644
--- a/.gitlab-ci-files/job-uitests.yml
+++ b/.gitlab-ci-files/job-uitests.yml
@@ -29,7 +29,7 @@ job-android-uitests:
 
     #define adb tcp port
     - RUNNING_DEVICES=$(${ANDROID_HOME}/platform-tools/adb devices)
-    - while [[ $RUNNING_DEVICES  == *$emulator_adb_port* ]]; do; emulator_adb_port=$(($emulator_adb_port + 2)); done
+    - while [[ $RUNNING_DEVICES == *$emulator_adb_port* ]]; do emulator_adb_port=$(($emulator_adb_port + 2)); done
     - if [ $emulator_adb_port -gt 5586 ]; then echo "|warning| the 15 recommended ports are already used by other emulators. ADB may not function properly for this emulator"; fi
     - emulator_name=$emulator_name-$emulator_adb_port
 
@@ -47,7 +47,8 @@ job-android-uitests:
   script:
     - set +e
 
-    #launch uitest suite
+    #launch uitest suites
+    - ANDROID_SERIAL=emulator-$emulator_adb_port 
     - ./gradlew -Pandroid.testInstrumentationRunnerArguments.class=org.linphone.testsuites.CallTestSuite -PscreportWindowed=false connectedAndroidTest --continue
     - export BUILD_RESULT=$?