diff --git a/configure.ac b/configure.ac
index 8040a1644a..2d9d4f66b1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2100,16 +2100,12 @@ fi
 if test "$enable_pim6d" != "no"; then
 AC_MSG_CHECKING([for pim6d OS support])
 case "$host_os" in
-  darwin*)
-    AC_MSG_RESULT([no])
-    enable_pim6d="no"
-    ;;
-  openbsd*)
-    AC_MSG_RESULT([no])
-    enable_pim6d="no"
+  linux*)
+    AC_MSG_RESULT([yes])
     ;;
   *)
-    AC_MSG_RESULT([yes])
+    AC_MSG_RESULT([no])
+    enable_pim6d="no"
     ;;
 esac
 fi