diff --git a/sdk_container/src/third_party/portage-stable/eclass/flag-o-matic.eclass b/sdk_container/src/third_party/portage-stable/eclass/flag-o-matic.eclass
index 9590192bb1..4765809e91 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/flag-o-matic.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/flag-o-matic.eclass
@@ -77,7 +77,7 @@ _setup-allowed-flags() {
 		-ggdb '-ggdb[0-9]'
 		-gdwarf '-gdwarf-*'
 		-gstabs -gstabs+
-		-gz
+		-gz '-gz=*'
 		-glldb
 		'-fdebug-default-version=*'