--- a/toolkit/components/places/src/History.cpp
+++ b/toolkit/components/places/src/History.cpp
@@ -562,19 +562,21 @@ private:
                                _place.sessionId);
     NS_ENSURE_SUCCESS(rv, rv);
 
     mozStorageStatementScoper scoper(stmt);
     rv = stmt->Execute();
     NS_ENSURE_SUCCESS(rv, rv);
 
     // Now that it should be in the database, we need to obtain the id of the
-    // visit we just added.
+    // place we just added.
     bool visited = FetchVisitInfo(_place);
-    NS_ASSERTION(!visited, "Not visited after adding a visit!");
+    if (visited) {
+      NS_NOTREACHED("Not visited after adding a visit!");
+    }
 
     return NS_OK;
   }
 
   /**
    * Updates the frecency, and possibly the hidden-ness of aPlace.
    *
    * @param aPlace