diff --git a/tests/robotests/Android.mk b/tests/robotests/Android.mk
index 37a52a7..cb106ca 100644
--- a/tests/robotests/Android.mk
+++ b/tests/robotests/Android.mk
@@ -8,6 +8,7 @@
 
 # Include the testing libraries (JUnit4 + Robolectric libs).
 LOCAL_STATIC_JAVA_LIBRARIES := \
+    mockito-robolectric-prebuilt \
     truth-prebuilt
 
 LOCAL_JAVA_LIBRARIES := \