diff --git a/src/pkg/runtime/mkasmh.sh b/src/pkg/runtime/mkasmh.sh
index 3ed5f74c90..d6c8d64e09 100755
--- a/src/pkg/runtime/mkasmh.sh
+++ b/src/pkg/runtime/mkasmh.sh
@@ -84,6 +84,7 @@ esac
 echo
 
 awk '
+{ gsub(/\r/, ""); }
 /^aggr G$/ { aggr="g" }
 /^aggr M$/ { aggr = "m" }
 /^aggr Gobuf$/ { aggr = "gobuf" }