diff --git a/script/tf-coverity/common-def.sh b/script/tf-coverity/common-def.sh
index eca7080..ab226a5 100644
--- a/script/tf-coverity/common-def.sh
+++ b/script/tf-coverity/common-def.sh
@@ -15,7 +15,7 @@
     local flags="$*"
     echo "Building TF with the following build flags:"
     echo "  $flags"
-    make $flags clean
+    make distclean
     make $flags all
     echo "Build config complete."
     echo