diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c
index 27d4b45..ec12768 100644
--- a/target/arm/mte_helper.c
+++ b/target/arm/mte_helper.c
@@ -358,3 +358,11 @@
         memset(mem, tag_pair, tag_bytes);
     }
 }
+
+/*
+ * Perform an MTE checked access for a single logical or atomic access.
+ */
+uint64_t HELPER(mte_check1)(CPUARMState *env, uint32_t desc, uint64_t ptr)
+{
+    return ptr;
+}