SPIRV-Tools validator sources have moved.
diff --git a/third_party/Android.mk b/third_party/Android.mk
index d2efbdc..3372390 100644
--- a/third_party/Android.mk
+++ b/third_party/Android.mk
@@ -173,11 +173,14 @@
 		source/table.cpp \
 		source/text.cpp \
 		source/text_handler.cpp \
-		source/validate.cpp \
+		source/val/BasicBlock.cpp \
+		source/val/Construct.cpp \
+		source/val/Function.cpp \
+		source/val/ValidationState.cpp \
 		source/validate_cfg.cpp \
+		source/validate.cpp \
 		source/validate_id.cpp \
 		source/validate_instruction.cpp \
 		source/validate_layout.cpp \
-		source/validate_ssa.cpp \
-		source/validate_types.cpp
+		source/validate_ssa.cpp
 include $(BUILD_STATIC_LIBRARY)