diff --git a/libraries/gtk-aurora-engine/gtk-aurora-engine.SlackBuild b/libraries/gtk-aurora-engine/gtk-aurora-engine.SlackBuild
index 42384aa24b..f3f38a86e5 100644
--- a/libraries/gtk-aurora-engine/gtk-aurora-engine.SlackBuild
+++ b/libraries/gtk-aurora-engine/gtk-aurora-engine.SlackBuild
@@ -30,13 +30,13 @@
 # 1 - Initial release.
 
 PRGNAM=gtk-aurora-engine
-VERSION=1.5.1
+VERSION=${VERSION:-1.5.1}
 BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
-    i?86) ARCH=i486 ;;
+    i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
        *) ARCH=$( uname -m ) ;;
   esac
@@ -52,8 +52,8 @@ DOCS="AUTHORS COPYING ChangeLog NEWS README"
 
 set -e
 
-if [ "$ARCH" = "i486" ]; then
-  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
 elif [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"