diff --git a/src/ripple_data/protocol/RippleAddress.cpp b/src/ripple_data/protocol/RippleAddress.cpp
index 8664525f70..faf8b85389 100644
--- a/src/ripple_data/protocol/RippleAddress.cpp
+++ b/src/ripple_data/protocol/RippleAddress.cpp
@@ -30,6 +30,7 @@ void RippleAddress::clear ()
 {
     nVersion = VER_NONE;
     vchData.clear ();
+    mIsValid = false;
 }
 
 bool RippleAddress::isSet () const