diff --git a/xapp/debug.patch b/xapp/debug.patch
new file mode 100644
index 0000000..900dc8e
--- /dev/null
+++ b/xapp/debug.patch
@@ -0,0 +1,31 @@
+From 2015b643c95127fc34b05e3252562599ce485b14 Mon Sep 17 00:00:00 2001
+From: Michael Webster <miketwebster@gmail.com>
+Date: Sat, 3 Jun 2023 09:38:22 -0400
+Subject: [PATCH] xapp-debug.c: build only with ENABLE_DEBUG.
+
+xapp-debug.h gets disable, so the build would break when buildtype is
+'release'.
+
+Fixes #157.
+---
+ libxapp/xapp-debug.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/libxapp/xapp-debug.c b/libxapp/xapp-debug.c
+index 8bb10ea..da2b913 100644
+--- a/libxapp/xapp-debug.c
++++ b/libxapp/xapp-debug.c
+@@ -28,6 +28,8 @@
+ 
+ #include "xapp-debug.h"
+ 
++#ifdef ENABLE_DEBUG
++
+ static DebugFlags flags = 0;
+ static gboolean initialized = FALSE;
+ 
+@@ -127,3 +129,4 @@ xapp_debug_valist (DebugFlags flag,
+   }
+ }
+ 
++#endif /* ENABLE_DEBUG */
diff --git a/xapp/xapp.SlackBuild b/xapp/xapp.SlackBuild
index bd8f489..c24b309 100644
--- a/xapp/xapp.SlackBuild
+++ b/xapp/xapp.SlackBuild
@@ -74,6 +74,8 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+patch -p1 < $CWD/debug.patch
+
 mkdir -p build
 cd build
 meson setup \