diff --git a/zsh-5.0.7-signal-name.patch b/zsh-5.0.7-signal-name.patch
new file mode 100644
index 0000000..c7ec73b
--- /dev/null
+++ b/zsh-5.0.7-signal-name.patch
@@ -0,0 +1,42 @@
+From 9f9b98e0fe83c8aab493369c0671360ed06e138b Mon Sep 17 00:00:00 2001
+From: Peter Stephenson <pws@zsh.org>
+Date: Thu, 15 Jan 2015 13:50:09 +0000
+Subject: [PATCH] 34287: preprocessor for signal name generation.
+
+Some gcc header files are difficult for the signames2.awk
+script to process, so if the preprocessor is gcc give the
+option -P to strip out the unwanted additions.
+
+Upstream-commit: c7aa6443907ddd97b6b1e8729ce9c897de0d244c
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Src/zsh.mdd | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/Src/zsh.mdd b/Src/zsh.mdd
+index 9a8c923..469e91b 100644
+--- a/Src/zsh.mdd
++++ b/Src/zsh.mdd
+@@ -21,9 +21,18 @@ hdrdeps="zshcurses.h zshterm.h"
+ :<<\Make
+ @CONFIG_MK@
+ 
++# If we're using gcc as the preprocessor, get rid of the additional
++# lines generated by the preprocessor as they can confuse the script.
++# We don't need these in other cases either, but can't necessarily rely
++# on the option to remove them being the same.
+ signames.c: signames1.awk signames2.awk ../config.h @SIGNAL_H@
+ 	$(AWK) -f $(sdir)/signames1.awk @SIGNAL_H@ >sigtmp.c
+-	$(CPP) sigtmp.c >sigtmp.out
++	case "$(CPP)" in \
++	gcc*) \
++	$(CPP) -P sigtmp.c >sigtmp.out;; \
++	*) \
++	$(CPP) sigtmp.c >sigtmp.out;; \
++	esac
+ 	$(AWK) -f $(sdir)/signames2.awk sigtmp.out > $@
+ 	rm -f sigtmp.c sigtmp.out
+ 
+-- 
+2.1.0
+
diff --git a/zsh.spec b/zsh.spec
index 37cb9a4..fdfc84e 100644
--- a/zsh.spec
+++ b/zsh.spec
@@ -35,6 +35,9 @@ Patch9: zsh-5.0.7-heredocs-sigsegv.patch
 # queue signals when manipulating global state to avoid deadlock
 Patch10: zsh-5.0.7-signal-safety.patch
 
+# improve signal name generation (prevents Test/C03traps.ztst from failing)
+Patch11: zsh-5.0.7-signal-name.patch
+
 BuildRequires: coreutils sed ncurses-devel libcap-devel
 BuildRequires: texinfo texi2html gawk hostname
 Requires(post): info grep
@@ -76,6 +79,7 @@ This package contains the Zsh manual in html format.
 %patch8 -p1
 %patch9 -p1
 %patch10 -p1
+%patch11 -p1
 
 cp -p %SOURCE7 .