diff --git a/libraries/collada-dom/collada-dom.SlackBuild b/libraries/collada-dom/collada-dom.SlackBuild
index 35bcef7435..6703558450 100644
--- a/libraries/collada-dom/collada-dom.SlackBuild
+++ b/libraries/collada-dom/collada-dom.SlackBuild
@@ -15,7 +15,7 @@ TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
-    i?86) ARCH=i486 ;;
+    i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
        *) ARCH=$( uname -m ) ;;
   esac
@@ -26,8 +26,8 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-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"
@@ -55,6 +55,8 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+patch -p1 < $CWD/return-type.patch
+
 mkdir -p build
 cd build
   cmake \
diff --git a/libraries/collada-dom/return-type.patch b/libraries/collada-dom/return-type.patch
new file mode 100644
index 0000000000..7fe685ce5b
--- /dev/null
+++ b/libraries/collada-dom/return-type.patch
@@ -0,0 +1,26 @@
+From 8e65676c1cbecde1c0c4d8c2e1cfb20fc49c410b Mon Sep 17 00:00:00 2001
+From: rosen <rosen.diankov@mujin.co.jp>
+Date: Wed, 24 Feb 2016 12:49:14 +0900
+Subject: [PATCH] fix return type thanks to #22
+
+---
+ dom/src/dae/daeMetaGroup.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dom/src/dae/daeMetaGroup.cpp b/dom/src/dae/daeMetaGroup.cpp
+index 25fd9cc..c34ac4c 100644
+--- a/dom/src/dae/daeMetaGroup.cpp
++++ b/dom/src/dae/daeMetaGroup.cpp
+@@ -26,7 +26,7 @@ daeElement *daeMetaGroup::placeElement( daeElement *parent, daeElement *child, d
+ 	(void)offset;
+ 	daeString nm = child->getElementName();
+ 	if ( findChild( nm ) == NULL ) {
+-		return false;
++		return NULL;
+ 	}
+ 	daeElementRef el;
+ 
+-- 
+2.8.2
+
+