diff --git a/arch/risc-v/src/common/vfork.S b/arch/risc-v/src/common/vfork.S
index d4283457ad4..f0868b6ca22 100644
--- a/arch/risc-v/src/common/vfork.S
+++ b/arch/risc-v/src/common/vfork.S
@@ -139,7 +139,7 @@ vfork:
   /* Then, call up_vfork(), passing it a pointer to the stack frame */
 
   mv          a0, sp
-  jal         x1, up_vfork
+  call        up_vfork
 
   /* Release the stack frame and return the value returned by up_vfork */