diff --git a/ujit_asm.h b/ujit_asm.h
index 810b4d35b7..baeadc75b0 100644
--- a/ujit_asm.h
+++ b/ujit_asm.h
@@ -297,7 +297,7 @@ void jnc(codeblock_t* cb, size_t label_idx);
 void jne(codeblock_t* cb, size_t label_idx);
 void jng(codeblock_t* cb, size_t label_idx);
 void jnge(codeblock_t* cb, size_t label_idx);
-void jnl(codeblock_t* cb, size_t label_idx);
+// void jnl(codeblock_t* cb, size_t label_idx); // this conflicts with jnl(3)
 void jnle(codeblock_t* cb, size_t label_idx);
 void jno(codeblock_t* cb, size_t label_idx);
 void jnp(codeblock_t* cb, size_t label_idx);