diff --git a/0002-Add-riscv64-define-for-cds.patch b/0002-Add-riscv64-define-for-cds.patch
new file mode 100644
index 0000000000000000000000000000000000000000..2d9aa5923e81e08768bebf357bbea841ead43e4b
--- /dev/null
+++ b/0002-Add-riscv64-define-for-cds.patch
@@ -0,0 +1,25 @@
+From 0e7947518aea1a48eeda4bc87f6fc4aa7e8140a1 Mon Sep 17 00:00:00 2001
+From: Xeonacid <h.dwwwwww@gmail.com>
+Date: Sat, 11 Jan 2025 21:44:01 +0800
+Subject: [PATCH] Add riscv64 define for cds
+
+---
+ extern/libcds/cds/compiler/gcc/compiler_macro.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/extern/libcds/cds/compiler/gcc/compiler_macro.h b/extern/libcds/cds/compiler/gcc/compiler_macro.h
+index c36c6f9c054..a1a42e66a7a 100644
+--- a/extern/libcds/cds/compiler/gcc/compiler_macro.h
++++ b/extern/libcds/cds/compiler/gcc/compiler_macro.h
+@@ -132,6 +132,11 @@
+ #   define CDS_PROCESSOR__NAME   "LOONGARCH"
+ #   define CDS_PROCESSOR__NICK   "loongarch"
+ #   define CDS_BUILD_BITS        64
++#elif defined(__riscv) && __riscv_xlen == 64
++#   define CDS_PROCESSOR_ARCH    CDS_PROCESSOR_RISCV64
++#   define CDS_PROCESSOR__NAME   "RISC-V64"
++#   define CDS_PROCESSOR__NICK   "riscv64"
++#   define CDS_BUILD_BITS        64
+ #else
+ #   if defined(CDS_USE_LIBCDS_ATOMIC)
+ #       error "Libcds does not support atomic implementation for the processor architecture. Try to use C++11-compatible compiler and remove CDS_USE_LIBCDS_ATOMIC flag from compiler command line"
diff --git a/firebird.spec b/firebird.spec
index 6d41d255926b0a5ce7c067be68d95fcc9d2ef8e3..af3c44cda8b894b44c92eb33713c7a84b6b8b935 100644
--- a/firebird.spec
+++ b/firebird.spec
@@ -8,7 +8,7 @@
 
 Name:           firebird
 Version:        %{ver}.%{rev}
-Release:        1
+Release:        2
 
 Summary:        SQL relational database management system
 License:        Interbase-1.0
@@ -24,6 +24,7 @@ Patch0000:      add-pkgconfig-files.patch
 Patch0001:      no-copy-from-icu.patch
 Patch0002:      cloop-honour-build-flags.patch
 Patch0003:      0001-add-loongarch64-support-for-Firebird.patch
+Patch0004:      0002-Add-riscv64-define-for-cds.patch
 
 BuildRequires: autoconf
 BuildRequires: automake
@@ -315,6 +316,9 @@ fi
 %{_bindir}/gsplit
 
 %changelog
+* Wed Jun 18 2025 laokz <zhangkai@iscas.ac.cn> - 5.0.2.1613-2
+- backport upstream patch to fix riscv64 build failure
+
 * Tue May 27 2025 Funda Wang <fundawang@yeah.net> - 5.0.2.1613-1
 - update to 5.0.2.1613