diff --git a/mozilla-nss.changes b/mozilla-nss.changes
index a2c114f..8b06129 100644
--- a/mozilla-nss.changes
+++ b/mozilla-nss.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jun 19 15:00:43 UTC 2018 - schwab@suse.de
+
+- Set USE_64 on riscv64
+
 -------------------------------------------------------------------
 Thu Jun  7 12:30:44 UTC 2018 - wr@rosenauer.org
 
diff --git a/mozilla-nss.spec b/mozilla-nss.spec
index d9b4444..d3535ad 100644
--- a/mozilla-nss.spec
+++ b/mozilla-nss.spec
@@ -197,7 +197,7 @@ export NSPR_INCLUDE_DIR=`nspr-config --includedir`
 export NSPR_LIB_DIR=`nspr-config --libdir`
 export OPT_FLAGS="%{optflags} -fno-strict-aliasing"
 export LIBDIR=%{_libdir}
-%ifarch x86_64 s390x ppc64 ppc64le ia64 aarch64
+%ifarch x86_64 s390x ppc64 ppc64le ia64 aarch64 riscv64
 export USE_64=1
 %endif
 export NSS_USE_SYSTEM_SQLITE=1