diff --git a/fcitx5-std-runtime_error.patch b/fcitx5-std-runtime_error.patch
new file mode 100644
index 0000000..bffb888
--- /dev/null
+++ b/fcitx5-std-runtime_error.patch
@@ -0,0 +1,38 @@
+Index: fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx-utils/event.h
+===================================================================
+--- fcitx5-4.99.0+git20200212.9436416.orig/src/lib/fcitx-utils/event.h
++++ fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx-utils/event.h
+@@ -27,6 +27,8 @@
+ #include <memory>
+ #include <time.h>
+ 
++#include <stdexcept>
++
+ namespace fcitx {
+ 
+ enum class IOEventFlag {
+Index: fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx-utils/utf8.h
+===================================================================
+--- fcitx5-4.99.0+git20200212.9436416.orig/src/lib/fcitx-utils/utf8.h
++++ fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx-utils/utf8.h
+@@ -29,6 +29,8 @@
+ #include <fcitx-utils/misc.h>
+ #include <string>
+ 
++#include <stdexcept>
++
+ namespace fcitx {
+ namespace utf8 {
+ 
+Index: fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx/candidatelist.cpp
+===================================================================
+--- fcitx5-4.99.0+git20200212.9436416.orig/src/lib/fcitx/candidatelist.cpp
++++ fcitx5-4.99.0+git20200212.9436416/src/lib/fcitx/candidatelist.cpp
+@@ -18,6 +18,7 @@
+ //
+ 
+ #include "candidatelist.h"
++#include <stdexcept>
+ 
+ namespace fcitx {
+ 
diff --git a/fcitx5.changes b/fcitx5.changes
index 67235d5..486da10 100644
--- a/fcitx5.changes
+++ b/fcitx5.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Sep  2 04:48:40 UTC 2020 - Marguerite Su <i@marguerite.su>
+
+- FTBFS for Tumbleweed
+  * add fcitx5-std-runtime_error.patch, std::runtime_error is in
+    stdexcept.h
+
 -------------------------------------------------------------------
 Tue Mar  3 21:17:37 UTC 2020 - Xu Zhao <i@xuzhao.net>
 
diff --git a/fcitx5.spec b/fcitx5.spec
index e9c72ce..8f0b8ac 100644
--- a/fcitx5.spec
+++ b/fcitx5.spec
@@ -30,6 +30,8 @@ Source3:  xim.d-fcitx5
 Source4:  macros.fcitx5
 Source99:   baselibs.conf
 Patch:		fcitx5-no-download.patch
+# PATCH-FIX-UPSTREAM marguerite@opensuse.org fcitx5-std-runtime_error.patch - std::runtime_error is in stdexcept.h
+Patch1:   fcitx5-std-runtime_error.patch
 BuildRequires:  cldr-emoji-annotation-devel
 BuildRequires:  cmake
 BuildRequires:  extra-cmake-modules
@@ -113,6 +115,7 @@ This package provides utility libraries for fcitx5.
 %prep
 %setup -q
 %patch -p1
+%patch1 -p1
 cp -r %{S:1} src/modules/spell/dict/
 
 %build