diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 011f2f90d..c7bbfef22 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,19 +4,17 @@ before_script:
   - apt-get -q install -y wget tar unzip python3
   - echo " == Installing OpenJDK 7"
   - apt-get -q install -y openjdk-7-jdk
-  - echo " == Installing packages required by the 32-bit SDK"
-  - apt-get -q install -y lib32stdc++6 lib32z1
-  - echo " == Installing the Android SDK"
-  - wget -q -O android-sdk.tgz https://dl.google.com/android/android-sdk_r24.4.1-linux.tgz
-  - tar -xzf android-sdk.tgz
-  - export ANDROID_HOME=$PWD/android-sdk-linux
-  - export PATH="$ANDROID_HOME/tools:$PATH"
-  - echo " == Installing Android SDK components"
-  - echo y | android -s update sdk --no-ui -a -t platform-tools,tools,build-tools-23.0.2,android-22,extra-android-m2repository
-  - export PATH="$ANDROID_HOME/platform-tools:$PATH"
-  - export PATH="$ANDROID_HOME/build-tools/23.0.2:$PATH"
-  - echo " == Installing Android emulator images"
-  - echo y | android -s update sdk --no-ui -a -t android-10
+  - test -z "$ANDROID_HOME" &&
+        echo " == Installing Android SDK" &&
+        apt-get -q install -y lib32stdc++6 lib32z1 &&
+        wget -q -O android-sdk.tgz https://dl.google.com/android/android-sdk_r24.4.1-linux.tgz &&
+        tar -xzf android-sdk.tgz &&
+        export ANDROID_HOME=$PWD/android-sdk-linux &&
+        export PATH="$ANDROID_HOME/tools:$PATH" &&
+        echo y | android -s update sdk --no-ui -a -t platform-tools,tools,build-tools-23.0.2,android-22,extra-android-m2repository &&
+        export PATH="$ANDROID_HOME/platform-tools:$PATH" &&
+        export PATH="$ANDROID_HOME/build-tools/23.0.2:$PATH" &&
+        echo y | android -s update sdk --no-ui -a -t android-10
 
 test:
   script: