diff --git a/recipe/0002-Include-signal.h-to-support-sig_atomic_t.patch b/recipe/0002-Include-signal.h-to-support-sig_atomic_t.patch
new file mode 100644
index 0000000..5a1bbb0
--- /dev/null
+++ b/recipe/0002-Include-signal.h-to-support-sig_atomic_t.patch
@@ -0,0 +1,22 @@
+From cf9c5c38b6896586568fc7e27db1bd222bd2b45a Mon Sep 17 00:00:00 2001
+From: mauzey1 <mauzey1@llnl.gov>
+Date: Mon, 24 Jun 2024 11:28:05 -0700
+Subject: [PATCH 2/2] Include signal.h to support sig_atomic_t
+
+---
+ Src/_cmormodule.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Src/_cmormodule.c b/Src/_cmormodule.c
+index 744bb46..da1036a 100644
+--- a/Src/_cmormodule.c
++++ b/Src/_cmormodule.c
+@@ -1,4 +1,5 @@
+ #include <Python.h>
++#include <signal.h>
+ #define NPY_NO_DEPRECATED_API  NPY_1_10_API_VERSION
+ 
+ #include "numpy/arrayobject.h"
+-- 
+2.39.2 (Apple Git-143)
+
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 59ad1fc..8f8f548 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -9,6 +9,7 @@ source:
   sha256: 5f5a44e660104916dd0a3d0d942234db375d2a4ffb4f4113ec88cfdd93f99ef4
   patches:
     - 0001-Replace-function-deprecated-in-numpy-2.0.patch
+    - 0002-Include-signal.h-to-support-sig_atomic_t.patch
 
 build:
   number: 1