diff --git a/android/jni/app-android.cpp b/android/jni/app-android.cpp
index 8ca63aab6..9675eba14 100644
--- a/android/jni/app-android.cpp
+++ b/android/jni/app-android.cpp
@@ -323,6 +323,8 @@ bool System_GetPropertyBool(SystemProperty prop) {
 }
 
 std::string GetJavaString(JNIEnv *env, jstring jstr) {
+	if (!jstr)
+		return "";
 	const char *str = env->GetStringUTFChars(jstr, 0);
 	std::string cpp_string = std::string(str);
 	env->ReleaseStringUTFChars(jstr, str);
@@ -397,7 +399,9 @@ extern "C" void Java_org_ppsspp_ppsspp_NativeApp_init
 	langRegion = GetJavaString(env, jlangRegion);
 
 	std::string externalDir = GetJavaString(env, jexternalDir);
-	std::string user_data_path = GetJavaString(env, jdataDir) + "/";
+	std::string user_data_path = GetJavaString(env, jdataDir);
+	if (user_data_path.size() > 0)
+		user_data_path += "/";
 	library_path = GetJavaString(env, jlibraryDir) + "/";
 	std::string shortcut_param = GetJavaString(env, jshortcutParam);
 	std::string cacheDir = GetJavaString(env, jcacheDir);
diff --git a/android/src/org/ppsspp/ppsspp/NativeActivity.java b/android/src/org/ppsspp/ppsspp/NativeActivity.java
index 7f301c992..9888a9fa1 100644
--- a/android/src/org/ppsspp/ppsspp/NativeActivity.java
+++ b/android/src/org/ppsspp/ppsspp/NativeActivity.java
@@ -296,7 +296,12 @@ public abstract class NativeActivity extends Activity implements SurfaceHolder.C
 	    File sdcard = Environment.getExternalStorageDirectory();
 
 	    String externalStorageDir = sdcard.getAbsolutePath();
-	    String dataDir = this.getFilesDir().getAbsolutePath();
+	    File filesDir = this.getFilesDir();
+		String dataDir = null;
+	    if (filesDir != null) {
+	    	// Null has been seen in Google Play stacktraces
+			dataDir = this.getFilesDir().getAbsolutePath();
+		}
 		String apkFilePath = appInfo.sourceDir;
 		String cacheDir = getCacheDir().getAbsolutePath();