1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 11304e118f..fb854603d8 100644
--- a/Makefile
+++ b/Makefile
@@ -406,7 +406,7 @@ CPPLINT_EXCLUDE += src/queue.h
 CPPLINT_EXCLUDE += src/tree.h
 CPPLINT_EXCLUDE += src/v8abbr.h
 
-CPPLINT_FILES = $(filter-out $(CPPLINT_EXCLUDE), $(wildcard src/*.cc src/*.h src/*.c))
+CPPLINT_FILES = $(filter-out $(CPPLINT_EXCLUDE), $(wildcard src/*.cc src/*.h src/*.c tools/icu/*.h tools/icu/*.cc))
 
 cpplint:
 	@$(PYTHON) tools/cpplint.py $(CPPLINT_FILES)