diff --git a/quota-4.04-Add-TIRPC_CFLAGS-globally-to-CFLAGS-for-RPC-support-.patch b/quota-4.04-Add-TIRPC_CFLAGS-globally-to-CFLAGS-for-RPC-support-.patch
new file mode 100644
index 0000000..5f63cde
--- /dev/null
+++ b/quota-4.04-Add-TIRPC_CFLAGS-globally-to-CFLAGS-for-RPC-support-.patch
@@ -0,0 +1,43 @@
+From bbb8819fc0f6ed379a05d635a61bcf9c8986079f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20K=2E=20H=C3=BCttel?= <dilfridge@gentoo.org>
+Date: Sat, 16 Sep 2017 13:09:43 +0200
+Subject: [PATCH] Add $(TIRPC_CFLAGS) globally to CFLAGS for RPC support,
+ needed for libc 2.26
+
+---
+ Makefile.am | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index 8d80bee..278290a 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -51,6 +51,8 @@ EXTRA_DIST = \
+ noinst_LIBRARIES = libquota.a
+ 
+ if WITH_RPC
++CFLAGS += $(TIRPC_CFLAGS)
++
+ rpcsvcdir = $(includedir)/rpcsvc
+ rpcsvc_DATA = \
+ 	rquota.h \
+@@ -100,8 +102,6 @@ libquota_a_SOURCES = \
+ 	mntopt.h \
+ 	pot.c \
+ 	pot.h
+-libquota_a_CFLAGS = \
+-	$(TIRPC_CFLAGS)
+ libquota_a_LIBADD = \
+ 	$(RPCLIBS)
+ 
+@@ -235,7 +235,6 @@ rpc_rquotad_SOURCES = \
+ 	rquota_server.c \
+ 	rquota_svc.c \
+ 	svc_socket.c
+-rpc_rquotad_CFLAGS = $(TIRPC_CFLAGS)
+ rpc_rquotad_LDADD = \
+ 	libquota.a \
+ 	$(WRAP_LIBS) \
+-- 
+2.14.1
+
diff --git a/quota.spec b/quota.spec
index 4eeed41..433643e 100644
--- a/quota.spec
+++ b/quota.spec
@@ -54,6 +54,9 @@ Patch1: quota-4.03-Validate-upper-bound-of-RPC-port.patch
 # Install rquotad(3) only if RPC is enabled,
 # <https://sourceforge.net/p/linuxquota/patches/45/>
 Patch2: quota-4.04-Install-rquota-3-only-if-RPC-is-enabled.patch
+# Pass TIRPC header files location to all RPC compilation units,
+# <https://sourceforge.net/p/linuxquota/patches/46/>
+Patch3: quota-4.04-Add-TIRPC_CFLAGS-globally-to-CFLAGS-for-RPC-support-.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  bash
@@ -170,6 +173,7 @@ Linux/UNIX environment.
 %patch0 -p1
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 # Regenerate build scripts
 autoreconf -f -i
 
@@ -316,6 +320,7 @@ make check
 %changelog
 * Mon Feb 05 2018 Petr Pisar <ppisar@redhat.com> - 1:4.04-3
 - rpcgen tool split from glibc-common package
+- Pass TIRPC header files location to all RPC compilation units
 
 * Thu Nov 30 2017 Petr Pisar <ppisar@redhat.com> - 1:4.04-2
 - Disable TCP wrappers (bug #1518778)