diff --git a/project/hoppla.sh b/project/hoppla.sh
index c738271..a28156a 100755
--- a/project/hoppla.sh
+++ b/project/hoppla.sh
@@ -98,6 +98,8 @@ for py_ver in $py_base_ver $py_curr_ver; do
 			      -e 's@-Wno-unused-result@@g' \
 			      -e 's@-Wno-unused-parameter@@g' \
 			      -e 's@-Wno-implicit-fallthrough@@g' \
+			      -e 's@-Wno-cast-function-type@@g' \
+			      -e 's@-Werror@@g' \
 			      -e 's/  */ /g' \
 			      -e 's/[ \t]*$//' \
 		| sort > cccore.log
@@ -118,6 +120,8 @@ for py_ver in $py_base_ver $py_curr_ver; do
 			      -e 's@-Wno-unused-result@@g' \
 			      -e 's@-Wno-unused-parameter@@g' \
 			      -e 's@-Wno-implicit-fallthrough@@g' \
+			      -e 's@-Wno-cast-function-type@@g' \
+			      -e 's@-Werror@@g' \
 			      -e 's/  */ /g' \
 			      -e 's/[ \t]*$//' \
 		| sort > ccext.log