diff --git a/src/dev/arm/smmu_v3_transl.hh b/src/dev/arm/smmu_v3_transl.hh
index 93877a54b1..1436b3cccb 100644
--- a/src/dev/arm/smmu_v3_transl.hh
+++ b/src/dev/arm/smmu_v3_transl.hh
@@ -142,6 +142,7 @@ class SMMUTranslationProcess : public SMMUProcess
             addr(0), addrMask(0), writable(false)
         {}
 
+        TranslResult(const TranslResult&) = default;
         TranslResult& operator=(const TranslResult &rhs) = default;
 
         bool isFaulting() const { return fault.isFaulting(); }