diff --git a/valgrind_test.sh b/valgrind_test.sh
index 953304489..7c486124d 100755
--- a/valgrind_test.sh
+++ b/valgrind_test.sh
@@ -3,6 +3,7 @@
 #Returns 0 on success when there are no failed tests 
 
 VALGRIND_DIR=VALGRIND_LOGS
+make clean
 make -j$(nproc) valgrind_check
 NUM_FAILED_TESTS=$((`wc -l $VALGRIND_DIR/valgrind_failed_tests | awk '{print $1}'` - 1))
 if [ $NUM_FAILED_TESTS -lt 1 ]; then