diff --git a/dev-libs/dynolog/dynolog-0.3.1_p20230126-r2.ebuild b/dev-libs/dynolog/dynolog-0.3.1_p20230126-r2.ebuild
index 0df5a58659f9e..ca74802f6de03 100644
--- a/dev-libs/dynolog/dynolog-0.3.1_p20230126-r2.ebuild
+++ b/dev-libs/dynolog/dynolog-0.3.1_p20230126-r2.ebuild
@@ -72,6 +72,7 @@ PATCHES=(
 	"${FILESDIR}"/${P}-riscv.patch
 	"${FILESDIR}"/${P}-musl.patch
 	"${FILESDIR}"/${P}-libcxx.patch
+	"${FILESDIR}"/${P}-gcc15.patch
 )
 
 CMAKE_SKIP_TESTS=( "Defs.CpuSet" "KernelCollecterTest.NetworkStatsTest" )
diff --git a/dev-libs/dynolog/files/dynolog-0.3.1_p20230126-gcc15.patch b/dev-libs/dynolog/files/dynolog-0.3.1_p20230126-gcc15.patch
new file mode 100644
index 0000000000000..f3e55f56f2d77
--- /dev/null
+++ b/dev-libs/dynolog/files/dynolog-0.3.1_p20230126-gcc15.patch
@@ -0,0 +1,10 @@
+--- a/third_party/cpr/include/cpr/callback.h	2024-09-18 22:01:50.107007518 +0200
++++ b/third_party/cpr/include/cpr/callback.h	2024-09-18 22:03:21.582963325 +0200
+@@ -4,6 +4,7 @@
+ #include "cprtypes.h"
+ 
+ #include <functional>
++#include <cstdint>
+ #include <utility>
+ 
+ namespace cpr {