diff --git a/academic/scilab/scilab.SlackBuild b/academic/scilab/scilab.SlackBuild
index 9367017a7a..762d9b2dfa 100644
--- a/academic/scilab/scilab.SlackBuild
+++ b/academic/scilab/scilab.SlackBuild
@@ -40,7 +40,11 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-if [ "$ARCH" != "i686" ] && [ "$ARCH" != "x86_64" ]; then
+if [ "$ARCH" = "i686" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  LIBDIRSUFFIX="64"
+else
   printf "\n\n$ARCH is not supported...\n"
   exit 1
 fi
@@ -60,8 +64,8 @@ cat $CWD/profile.d/$PRGNAM.sh > $PKG/etc/profile.d/$PRGNAM.sh
 cat $CWD/profile.d/$PRGNAM.csh > $PKG/etc/profile.d/$PRGNAM.csh
 chmod 0755 $PKG/etc/profile.d/*
 
-mkdir -p $PKG/usr/lib $PKG/usr/share
-mv lib/pkgconfig $PKG/usr/lib
+mkdir -p $PKG/usr/lib${LIBDIRSUFFIX} $PKG/usr/share
+mv lib/pkgconfig $PKG/usr/lib${LIBDIRSUFFIX}
 mv share/applications share/icons share/mime $PKG/usr/share/
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION