diff --git a/tests/examples/c/makefile b/tests/examples/c/makefile
index f364eb76fc34ab0975c00dcae2b8348e58b38517..768cceaec7cab39606647b702f87c7a2f36aa473 100644
--- a/tests/examples/c/makefile
+++ b/tests/examples/c/makefile
@@ -7,7 +7,8 @@ LFLAGS = '-Wl,-rpath,/usr/local/taos/driver/' -ltaos -lpthread -lm -lrt
 CFLAGS = -O3 -g -Wall -Wno-deprecated -fPIC -Wno-unused-result -Wconversion \
 	-Wno-char-subscripts -D_REENTRANT -Wno-format -D_REENTRANT -DLINUX \
 	-Wno-unused-function -D_M_X64 -I/usr/local/taos/include -std=gnu99 \
-	-I../../../deps/cJson/inc
+	-I../../../deps/cJson/inc -I../../../src/os/inc -I../../../src/inc \
+	-I../../../src/util/inc -I../../../src/common/inc
 all: $(TARGET)
 
 exe: