diff --git a/extension/android/CMakeLists.txt b/extension/android/CMakeLists.txt
index c2707af310a..b2f37eca2b1 100644
--- a/extension/android/CMakeLists.txt
+++ b/extension/android/CMakeLists.txt
@@ -226,6 +226,25 @@ if(EXECUTORCH_BUILD_LLAMA_JNI)
   endif()
 endif()
 
+if(EXECUTORCH_BUILD_GEMMA3N_JNI)
+  # Gemma3N runner sources compiled directly into the JNI library
+  target_sources(
+    executorch_jni
+    PRIVATE
+      jni/fb/jni_layer_gemma3n.cpp # @oss-disable
+      ${EXECUTORCH_ROOT}/examples/models/fb/gemma3n/runner/speech_encoder.cpp # @oss-disable
+      ${EXECUTORCH_ROOT}/examples/models/fb/gemma3n/runner/text_decoder_runner.cpp # @oss-disable
+      ${EXECUTORCH_ROOT}/examples/models/fb/gemma3n/runner/gemma3n_runner.cpp # @oss-disable
+  )
+  target_include_directories(
+    executorch_jni
+    PRIVATE ${EXECUTORCH_ROOT}/.. # @oss-disable
+  )
+  target_compile_definitions(
+    executorch_jni PRIVATE ENABLE_XNNPACK_SHARED_WORKSPACE # @oss-disable
+  )
+endif()
+
 target_include_directories(
   executorch_jni
   PRIVATE
diff --git a/scripts/build_android_library.sh b/scripts/build_android_library.sh
index 0fb9e909884..21cc91ec5a8 100755
--- a/scripts/build_android_library.sh
+++ b/scripts/build_android_library.sh
@@ -45,6 +45,7 @@ build_android_native_library() {
     -DEXECUTORCH_BUILD_EXTENSION_ASR_RUNNER="${EXECUTORCH_BUILD_EXTENSION_LLM:-ON}" \
     -DEXECUTORCH_BUILD_EXTENSION_TRAINING=ON \
     -DEXECUTORCH_BUILD_LLAMA_JNI="${EXECUTORCH_BUILD_EXTENSION_LLM:-ON}" \
+    # @oss-disable: -DEXECUTORCH_BUILD_GEMMA3N_JNI="${EXECUTORCH_BUILD_GEMMA3N_JNI:-OFF}" \
     -DEXECUTORCH_BUILD_NEURON="${EXECUTORCH_BUILD_NEURON}" \
     -DNEURON_BUFFER_ALLOCATOR_LIB="${NEURON_BUFFER_ALLOCATOR_LIB}" \
     -DEXECUTORCH_BUILD_QNN="${EXECUTORCH_BUILD_QNN}" \