diff --git a/gas/configure.in b/gas/configure.in
index 5d58a5f68e6..2c90667c144 100644
--- a/gas/configure.in
+++ b/gas/configure.in
@@ -38,9 +38,10 @@ configdirs="doc testsuite"
 gas_host=generic
 
 case "${host}" in
-
   a29k-*-*)			gas_host=a29k		;;
 
+  alpha-*-osf*)			gas_host=ansi		;;
+
   hppa*-hp-hpux*)		gas_host=hppahpux	;;
   hppa*-hp-bsd*)		gas_host=hppabsd	;;
   hppa*-hp-osf*)		gas_host=hppaosf	;;