diff --git a/0003-Add-D_GLIBCXX_ASSERTIONS-to-CPPFLAGS.patch b/0003-Add-D_GLIBCXX_ASSERTIONS-to-CPPFLAGS.patch
new file mode 100644
index 0000000..0dca694
--- /dev/null
+++ b/0003-Add-D_GLIBCXX_ASSERTIONS-to-CPPFLAGS.patch
@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Robbie Harwood <rharwood@redhat.com>
+Date: Fri, 25 Mar 2022 15:01:54 -0400
+Subject: [PATCH] Add -D_GLIBCXX_ASSERTIONS to CPPFLAGS
+
+Signed-off-by: Robbie Harwood <rharwood@redhat.com>
+---
+ Make.defaults | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Make.defaults b/Make.defaults
+index 130c1ee..4b0e77c 100644
+--- a/Make.defaults
++++ b/Make.defaults
+@@ -79,7 +79,7 @@ ccldflags = $(cflags) $(CCLDFLAGS) $(LDFLAGS) \
+ 	$(call pkg-config-ccldflags)
+ efi_cflags = $(cflags)
+ ASFLAGS	?= $(ARCH3264)
+-CPPFLAGS ?= -D_FORTIFY_SOURCE=2
++CPPFLAGS ?= -D_FORTIFY_SOURCE=2 -D_GLIBCXX_ASSERTIONS
+ RANLIBFLAGS	?= $(if $(filter $(CC),gcc),-D)
+ ARFLAGS ?= $(if $(filter $(CC),gcc),-Dcvqs)$(if $(filter $(CC),clang),-cqvs)
+ 
diff --git a/pesign.patches b/pesign.patches
index 3126bdf..98cdf7c 100644
--- a/pesign.patches
+++ b/pesign.patches
@@ -1,2 +1,3 @@
 Patch0001: 0001-daemon-remove-always-true-comparison.patch
 Patch0002: 0002-Fix-building-signed-kernels-on-setups-other-than-koj.patch
+Patch0003: 0003-Add-D_GLIBCXX_ASSERTIONS-to-CPPFLAGS.patch
diff --git a/pesign.spec b/pesign.spec
index 8ca1139..8e803f9 100644
--- a/pesign.spec
+++ b/pesign.spec
@@ -6,7 +6,7 @@
 Name:    pesign
 Summary: Signing utility for UEFI binaries
 Version: 115
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: GPL-2.0-only
 URL:     https://github.com/rhboot/pesign
 
@@ -161,6 +161,9 @@ certutil -d %{_sysconfdir}/pki/pesign/ -X -L > /dev/null
 %{python3_sitelib}/mockbuild/plugins/pesign.*
 
 %changelog
+* Fri Mar 25 2022 Robbie Harwood <rharwood@redhat.com> - 115-3
+- Add -D_GLIBCXX_ASSERTIONS to CPPFLAGS
+
 * Thu Mar 24 2022 Robbie Harwood <rharwood@redhat.com> - 115-2
 - Add support for non-koji signing in macros
 - Resolves: #1880858