diff --git a/Android.mk b/Android.mk
index 49cb3e4..fd38fd3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -41,6 +41,10 @@
 	$(BASE_DIR)/incallui/maps/impl/MapsModule.java \
 	$(BASE_DIR)/incallui/maps/impl/StaticMapFragment.java
 
+# Exclude testing only class, not used anywhere here
+EXCLUDE_FILES += \
+	$(BASE_DIR)/contacts/common/format/testing/SpannedTestUtils.java
+
 # All Dialers resources.
 # find . -type d -name "res" | uniq | sort
 RES_DIRS := \