diff --git a/24.patch b/24.patch
new file mode 100644
index 0000000..450de96
--- /dev/null
+++ b/24.patch
@@ -0,0 +1,29 @@
+From 5dea152c7728f5a37370ad8a229115833e36b4f6 Mon Sep 17 00:00:00 2001
+From: Rasmus Thomsen <oss@cogitri.dev>
+Date: Sat, 7 Mar 2020 10:44:16 +0100
+Subject: [PATCH] tests: use G_GSIZE_FORMAT instead of G_GUINT64_FORMAT for
+ gsize
+
+This fixes the build on 32-bit platforms with -Werror-format
+
+fixes #32
+---
+ src/tests/allocs-by-size.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/tests/allocs-by-size.c b/src/tests/allocs-by-size.c
+index 666113a..6260d4b 100644
+--- a/src/tests/allocs-by-size.c
++++ b/src/tests/allocs-by-size.c
+@@ -109,7 +109,7 @@ allocs_by_size (SysprofCaptureReader *reader)
+     {
+       const Item *item = &g_array_index (ar, Item, i);
+ 
+-      g_print ("%"G_GUINT64_FORMAT",%"G_GUINT64_FORMAT",%"G_GUINT64_FORMAT"\n",
++      g_print ("%"G_GSIZE_FORMAT",%"G_GSIZE_FORMAT",%"G_GSIZE_FORMAT"\n",
+                item->size, item->cmp, item->count);
+     }
+ }
+-- 
+2.24.1
+
diff --git a/sysprof.spec b/sysprof.spec
index 4e67f06..5ea6aee 100644
--- a/sysprof.spec
+++ b/sysprof.spec
@@ -8,6 +8,9 @@ Summary:        A system-wide Linux profiler
 License:        GPLv3+
 URL:            http://www.sysprof.com
 Source0:        https://download.gnome.org/sources/sysprof/3.36/sysprof-%{version}.tar.xz
+# Fix the build on 32 bit hosts
+# https://gitlab.gnome.org/GNOME/sysprof/-/merge_requests/24
+Patch0:         24.patch
 
 BuildRequires:  gcc
 BuildRequires:  gcc-c++