diff --git a/target/arm/helper.c b/target/arm/helper.c
index e24689f767..676059cb38 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11078,18 +11078,19 @@ static void v8m_security_lookup(CPUARMState *env, uint32_t address,
                 }
             }
         }
-
-        /* The IDAU will override the SAU lookup results if it specifies
-         * higher security than the SAU does.
-         */
-        if (!idau_ns) {
-            if (sattrs->ns || (!idau_nsc && sattrs->nsc)) {
-                sattrs->ns = false;
-                sattrs->nsc = idau_nsc;
-            }
-        }
         break;
     }
+
+    /*
+     * The IDAU will override the SAU lookup results if it specifies
+     * higher security than the SAU does.
+     */
+    if (!idau_ns) {
+        if (sattrs->ns || (!idau_nsc && sattrs->nsc)) {
+            sattrs->ns = false;
+            sattrs->nsc = idau_nsc;
+        }
+    }
 }
 
 static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,