diff --git a/Makefile b/Makefile
index 78d7e5b..7935619 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ UNS_HASHTABLE_OBJS=examples/hashtable/uns_hashtable.o
 EXAMPLE_OBJS=${UNS_STRING_OBJS} ${UNS_HASHTABLE_OBJS}
 
 ## Clean
-clean:
+clean: clean_tests
 	${RM} -f ${COMMON_OBJECTS} libuniversalservice.so \
 	         ${TEST_OBJS} ${COLLECTOR_OBJS} ${EXAMPLE_OBJS}
 
diff --git a/gen_tests.sh b/gen_tests.sh
index 4980f27..bccad2c 100755
--- a/gen_tests.sh
+++ b/gen_tests.sh
@@ -55,11 +55,13 @@ gen_hashtable_test() {
 }
 
 gen_tests() {
+	echo "examples/test_$1.o: include/uns.h $2"
+	GENERATED_OBJS="$GENERATED_OBJS examples/test_$1.o"
 	gen_string_test "$1" '${CHENEY_C89_OBJS}'
 	gen_hashtable_test "$1" '${CHENEY_C89_OBJS}'
 }
 
-gen_tests cheney_c89
+gen_tests cheney_c89 "include/cheney_c89.h"
 
 printf "tests: %s\n" "$TEST_TARGETS"
-printf 'clean_tests: %s\n\t${RM} -f %s %s\n' "$TEST_TARGETS" "$GENERATED_OBJS"
+printf 'clean_tests:\n\t${RM} -f %s %s\n' "$TEST_TARGETS" "$GENERATED_OBJS"