diff --git a/app-benchmarks/interbench/files/interbench-0.31-musl.patch b/app-benchmarks/interbench/files/interbench-0.31-musl.patch
new file mode 100644
index 0000000000000..df673be5114ae
--- /dev/null
+++ b/app-benchmarks/interbench/files/interbench-0.31-musl.patch
@@ -0,0 +1,10 @@
+--- interbench-0.31.orig/interbench.c	2016-10-21 02:28:00.000000000 +0000
++++ interbench-0.31/interbench.c	2020-08-27 16:24:51.521420811 +0000
+@@ -42,6 +42,7 @@
+ #include <sys/utsname.h>
+ #include <sys/time.h>
+ #include <sys/resource.h>
++#include <sys/stat.h>
+ #include <sys/types.h>
+ #include <sys/mman.h>
+ #include <sys/wait.h>
diff --git a/app-benchmarks/interbench/interbench-0.31.ebuild b/app-benchmarks/interbench/interbench-0.31.ebuild
index dfa772bcebbb4..b77a5a4b11872 100644
--- a/app-benchmarks/interbench/interbench-0.31.ebuild
+++ b/app-benchmarks/interbench/interbench-0.31.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -13,7 +13,10 @@ KEYWORDS="amd64 x86"
 LICENSE="GPL-2+"
 SLOT="0"
 
-PATCHES=( "${FILESDIR}/${P}-makefile.patch" )
+PATCHES=(
+	"${FILESDIR}/${P}-makefile.patch"
+	"${FILESDIR}/${P}-musl.patch"
+)
 
 DOCS=(
 	"readme"