Index: head/sys/kern/imgact_elf.c
===================================================================
--- head/sys/kern/imgact_elf.c
+++ head/sys/kern/imgact_elf.c
@@ -120,7 +120,8 @@
 
 int __elfN(nxstack) =
 #if defined(__amd64__) || defined(__powerpc64__) /* both 64 and 32 bit */ || \
-    (defined(__arm__) && __ARM_ARCH >= 7) || defined(__aarch64__)
+    (defined(__arm__) && __ARM_ARCH >= 7) || defined(__aarch64__) || \
+    defined(__riscv)
 	1;
 #else
 	0;