diff --git a/src/lj_asm_arm64.h b/src/lj_asm_arm64.h
index 5e690308..a575269b 100644
--- a/src/lj_asm_arm64.h
+++ b/src/lj_asm_arm64.h
@@ -831,10 +831,13 @@ static void asm_href(ASMState *as, IRIns *ir, IROp merge)
   /* Key not found in chain: jump to exit (if merged) or load niltv. */
   l_end = emit_label(as);
   as->invmcp = NULL;
-  if (merge == IR_NE)
+  if (merge == IR_NE) {
     asm_guardcc(as, CC_AL);
-  else if (destused)
-    emit_loada(as, dest, niltvg(J2G(as->J)));
+  } else if (destused) {
+    uint32_t k12 = emit_isk12(offsetof(global_State, nilnode.val));
+    lj_assertA(k12 != 0, "Cannot k12 encode niltv(L)");
+    emit_dn(as, A64I_ADDx^k12, dest, RID_GL);
+  }
 
   /* Follow hash chain until the end. */
   l_loop = --as->mcp;
diff --git a/src/lj_emit_arm64.h b/src/lj_emit_arm64.h
index 7205ce78..73df508c 100644
--- a/src/lj_emit_arm64.h
+++ b/src/lj_emit_arm64.h
@@ -230,8 +230,6 @@ static void emit_loadk(ASMState *as, Reg rd, uint64_t u64, int is64)
 /* Load a 64 bit constant into a GPR. */
 #define emit_loadu64(as, rd, i)	emit_loadk(as, rd, i, A64I_X)
 
-#define emit_loada(as, r, addr)	emit_loadu64(as, (r), (uintptr_t)(addr))
-
 #define glofs(as, k) \
   ((intptr_t)((uintptr_t)(k) - (uintptr_t)&J2GG(as->J)->g))
 #define mcpofs(as, k) \