diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk
--- a/share/mk/src.opts.mk
+++ b/share/mk/src.opts.mk
@@ -355,7 +355,7 @@
 .endif
 
 .if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "i386" || \
-    ${__T:Mpowerpc64*} != ""
+    ${__T:Mpowerpc64*} != "" || ${__T:Mriscv64*} != ""
 __DEFAULT_YES_OPTIONS+=OPENMP
 .else
 __DEFAULT_NO_OPTIONS+=OPENMP