diff --git a/srcpkgs/simh/template b/srcpkgs/simh/template
index 40078c692e9..2e376a21eb5 100644
--- a/srcpkgs/simh/template
+++ b/srcpkgs/simh/template
@@ -1,9 +1,10 @@
 # Template file for 'simh'
 pkgname=simh
-version=3.9
-revision=2
-wrksrc=${pkgname}-${version}
+version=3.11
+revision=1
+wrksrc="${pkgname}-${version}"
 create_wrksrc=yes
+build_wrksrc="sim"
 hostmakedepends="libpcap-devel unzip"
 makedepends="libpcap-devel"
 short_desc="Emulator for historical computers including PDP-11 and VAX"
@@ -11,7 +12,7 @@ maintainer="Orphaned <orphan@voidlinux.org>"
 license="MIT"
 homepage="http://simh.trailing-edge.com/"
 distfiles="http://simh.trailing-edge.com/sources/simhv${version/.}-0.zip"
-checksum=e49b259b66ad6311ca9066dee3d3693cd915106a6938a52ed685cdbada8eda3b
+checksum=7c96d6b3779e9b50f3847812042aa27b2b3e0787c4ac762b2dc4830a9fb27adc
 nopie=yes
 
 CFLAGS="-fcommon"
@@ -19,7 +20,7 @@ CFLAGS="-fcommon"
 do_build() {
 	mkdir -p BIN
 	make ${makejobs} all \
-		OS_CCDEFS="$CFLAGS" \
+		OS_CCDEFS="$CFLAGS -D_GNU_SOURCE" \
 		OS_LDFLAGS="$LDFLAGS -pthread -lm" \
 		USE_NETWORK=1 \
 		NETWORK_OPT="-DUSE_NETWORK -isystem ${XBPS_CROSS_BASE}/usr/include -lpcap"