diff --git a/sys-fs/cachefilesd/cachefilesd-0.10.10-r2.ebuild b/sys-fs/cachefilesd/cachefilesd-0.10.10-r2.ebuild
index 449a77a3d0023..c21c765b1186b 100644
--- a/sys-fs/cachefilesd/cachefilesd-0.10.10-r2.ebuild
+++ b/sys-fs/cachefilesd/cachefilesd-0.10.10-r2.ebuild
@@ -28,6 +28,9 @@ src_prepare() {
 
 	tc-export CC
 	append-flags -fpie
+
+	# bug #908661
+	use elibc_musl && append-flags -D_LARGEFILE64_SOURCE
 }
 
 src_install() {