diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index 8f94100c61..bafeb876ad 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -701,7 +701,6 @@ static uint64_t arm_casq_ptw(CPUARMState *env, uint64_t old_val,
 
     if (unlikely(!host)) {
         fi->type = ARMFault_UnsuppAtomicUpdate;
-        fi->s1ptw = true;
         return 0;
     }