diff --git a/compiler/cpp/cleanup.sh b/compiler/cpp/cleanup.sh
index 7dea388..e2ab8f8 100755
--- a/compiler/cpp/cleanup.sh
+++ b/compiler/cpp/cleanup.sh
@@ -1,5 +1,6 @@
 #!/bin/sh
 
+make clean 1>/dev/null 2>/dev/null
 rm -rf \
 AUTHORS \
 ChangeLog \