diff --git a/libnetfilter_queue.spec b/libnetfilter_queue.spec
index 60f2e60..1cbe254 100644
--- a/libnetfilter_queue.spec
+++ b/libnetfilter_queue.spec
@@ -30,6 +30,7 @@ Url:            http://netfilter.org/projects/libnetfilter_queue/
 Source:         http://netfilter.org/projects/libnetfilter_queue/files/%name-%version.tar.bz2
 Source2:        http://netfilter.org/projects/libnetfilter_queue/files/%name-%version.tar.bz2.sig
 Source3:        baselibs.conf
+Patch1:         rhel6-iptos.diff
 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 #BuildRequires:  libtool
@@ -75,6 +76,7 @@ libnetfilter_queue has been previously known as libnfnetlink_queue.
 
 %prep
 %setup -q
+%patch -P 1 -p1
 
 %build
 %configure --disable-static --includedir=%_includedir/%name-%version
diff --git a/rhel6-iptos.diff b/rhel6-iptos.diff
new file mode 100644
index 0000000..0998f56
--- /dev/null
+++ b/rhel6-iptos.diff
@@ -0,0 +1,34 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2012-10-09 02:46:29.418099680 +0200
+Upstream: never
+
+glibc before version 2.13 has a bug in netinet/ip.h:
+
+#define IPTOS_CLASS(class)              ((tos) & IPTOS_CLASS_MASK)
+
+Namely, it does not use "class", but "tos". And þe olde RHEL 6
+even ships that... bleh.
+
+---
+ src/extra/ipv4.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+Index: libnetfilter_queue-1.0.2/src/extra/ipv4.c
+===================================================================
+--- libnetfilter_queue-1.0.2.orig/src/extra/ipv4.c
++++ libnetfilter_queue-1.0.2/src/extra/ipv4.c
+@@ -133,12 +133,13 @@ int nfq_ip_snprintf(char *buf, size_t si
+ 	int ret;
+ 	struct in_addr src = { iph->saddr };
+ 	struct in_addr dst = { iph->daddr };
++	unsigned int tos = iph->tos;
+ 
+ 	ret = snprintf(buf, size, "SRC=%s DST=%s LEN=%u TOS=0x%X "
+ 				  "PREC=0x%X TTL=%u ID=%u PROTO=%u ",
+ 			inet_ntoa(src), inet_ntoa(dst),
+ 			ntohs(iph->tot_len), IPTOS_TOS(iph->tos),
+-			IPTOS_PREC(iph->tos), iph->ttl, ntohs(iph->id),
++			IPTOS_PREC(tos), iph->ttl, ntohs(iph->id),
+ 			iph->protocol);
+ 
+ 	return ret;