diff --git a/sys-auth/libyubikey/libyubikey-1.13.recipe b/sys-auth/libyubikey/libyubikey-1.13.recipe
index 05856b82f..17191037d 100644
--- a/sys-auth/libyubikey/libyubikey-1.13.recipe
+++ b/sys-auth/libyubikey/libyubikey-1.13.recipe
@@ -1,15 +1,15 @@
 SUMMARY="Low level C SDK for the Yubico YubiKey authentication device"
-DESCRIPTION="Low-level C software development kit for the Yubico YubiKey \
-authentication device."
+DESCRIPTION="C library for manipulating Yubico YubiKey One-Time Passwords \
+(OTPs)"
 HOMEPAGE="https://developers.yubico.com/yubico-c/"
 COPYRIGHT="2008-2015 Yubico AB"
 LICENSE="BSD (2-clause)"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="https://developers.yubico.com/yubico-c/Releases/libyubikey-$portVersion.tar.gz"
 CHECKSUM_SHA256="04edd0eb09cb665a05d808c58e1985f25bb7c5254d2849f36a0658ffc51c3401"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
-SECONDARY_ARCHITECTURES="x86_gcc2 x86"
+SECONDARY_ARCHITECTURES="x86"
 
 PROVIDES="
 	libyubikey$secondaryArchSuffix = $portVersion
@@ -39,8 +39,11 @@ BUILD_REQUIRES="
 	"
 BUILD_PREREQUIRES="
 	cmd:awk
+	cmd:diff
 	cmd:gcc$secondaryArchSuffix
+	cmd:grep
 	cmd:make
+	cmd:sed
 	"
 
 BUILD()