diff --git a/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-4.3.12.recipe b/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-4.3.12.recipe
index d58b627e2..b9d6f003e 100644
--- a/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-4.3.12.recipe
+++ b/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-4.3.12.recipe
@@ -11,7 +11,7 @@ COPYRIGHT="2003-2014 Oracle Corporation."
 #TODO:check user manual for full list
 LICENSE="GNU GPL v2
 	CDDL v1"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="http://download.virtualbox.org/virtualbox/$portVersion/VirtualBox-$portVersion.tar.bz2"
 SOURCE_DIR="VirtualBox-$portVersion"
 CHECKSUM_SHA256="db84ddf47d1ecd316ec46417595f0252e3ec2f67e35e1e17320aba87b7c2934f"
@@ -29,7 +29,7 @@ REQUIRES="
 	haiku$secondaryArchSuffix
 	lib:libiconv$secondaryArchSuffix
 	lib:libz$secondaryArchSuffix
-	lib:libpng$secondaryArchSuffix
+	lib:libpng16$secondaryArchSuffix
 	lib:libcurl$secondaryArchSuffix
 	"
 
diff --git a/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-5.1.26.recipe b/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-5.1.26.recipe
index 9624540db..809d24588 100644
--- a/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-5.1.26.recipe
+++ b/app-emulation/virtualbox-guest-additions/virtualbox_guest_additions-5.1.26.recipe
@@ -11,13 +11,14 @@ LICENSE="
 	GNU GPL v2
 	CDDL v1
 	"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="http://download.virtualbox.org/virtualbox/$portVersion/VirtualBox-$portVersion.tar.bz2"
 CHECKSUM_SHA256="b5715035e681a11ef1475f83f9503d34a00f0276b89c572eebec363dda80c8a9"
 SOURCE_DIR="VirtualBox-$portVersion"
 PATCHES="virtualbox_guest_additions-$portVersion.patchset"
 
 ARCHITECTURES="!x86_gcc2 ?x86 ?x86_64"
+SECONDARY_ARCHITECTURES="?x86"
 
 PROVIDES="
 	virtualbox_guest_additions$secondaryArchSuffix = $portVersion
@@ -29,7 +30,7 @@ REQUIRES="
 	haiku$secondaryArchSuffix
 	lib:libcurl$secondaryArchSuffix
 	lib:libiconv$secondaryArchSuffix
-	lib:libpng$secondaryArchSuffix
+	lib:libpng16$secondaryArchSuffix
 	lib:libz$secondaryArchSuffix
 	"
 
@@ -91,7 +92,7 @@ INSTALL()
 
 	cp VBoxControl VBoxService VBoxTray $binDir
 
-	
+
 	# install VBoxTray replicant
 #	mkdir -p $prefix/boot/post-install
 #	cat <<'EOF' > $prefix/boot/post-install/install-VBoxTray-replicant.sh