diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index 63b3308f5..2bfbd0f12 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -48,7 +48,9 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: 'recursive'
-      - run: make -j2 PLATFORM=simulator TARGET=android
+      - run: wget -nv https://dl.google.com/android/repository/android-ndk-r21e-linux-x86_64.zip
+      - run: unzip -q android-ndk-r21e-linux-x86_64.zip
+      - run: make -j2 PLATFORM=simulator TARGET=android NDK_PATH=./android-ndk-r21e
       - id: 'auth'
         if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
         uses: 'google-github-actions/auth@v0'
diff --git a/ion/src/simulator/android/build.gradle b/ion/src/simulator/android/build.gradle
index bb48650fd..c2e36530e 100644
--- a/ion/src/simulator/android/build.gradle
+++ b/ion/src/simulator/android/build.gradle
@@ -55,6 +55,8 @@ android {
       proguardFiles getDefaultProguardFile('proguard-android.txt')
       if (projectVariable('SIGNING_STORE_FILE')) {
         signingConfig signingConfigs.environment
+      } else {
+        signingConfig signingConfigs.debug
       }
     }
   }
diff --git a/ion/src/simulator/android/src/cpp/platform_language.cpp b/ion/src/simulator/android/src/cpp/platform_language.cpp
index b41b1ae46..7aa29c2ee 100644
--- a/ion/src/simulator/android/src/cpp/platform_language.cpp
+++ b/ion/src/simulator/android/src/cpp/platform_language.cpp
@@ -12,7 +12,7 @@ const char * languageCode() {
     JNIEnv * env = static_cast<JNIEnv *>(SDL_AndroidGetJNIEnv());
     jobject activity = static_cast<jobject>(SDL_AndroidGetActivity());
 
-    jclass j_class = env->FindClass("io/github/omega/OmegaActivity");
+    jclass j_class = env->FindClass("io/github/omega/simulator/OmegaActivity");
     jmethodID j_methodId = env->GetMethodID(
       j_class,
       "retrieveLanguage",