diff --git a/srcpkgs/simh/template b/srcpkgs/simh/template
index 6472752081..40078c692e 100644
--- a/srcpkgs/simh/template
+++ b/srcpkgs/simh/template
@@ -14,6 +14,8 @@ distfiles="http://simh.trailing-edge.com/sources/simhv${version/.}-0.zip"
 checksum=e49b259b66ad6311ca9066dee3d3693cd915106a6938a52ed685cdbada8eda3b
 nopie=yes
 
+CFLAGS="-fcommon"
+
 do_build() {
 	mkdir -p BIN
 	make ${makejobs} all \