diff --git a/src/wallet/scriptpubkeyman.h b/src/wallet/scriptpubkeyman.h
--- a/src/wallet/scriptpubkeyman.h
+++ b/src/wallet/scriptpubkeyman.h
@@ -638,7 +638,7 @@
     int32_t m_max_cached_index = -1;
 
     OutputType m_address_type;
-    bool m_internal;
+    bool m_internal = false;
 
     KeyMap m_map_keys GUARDED_BY(cs_desc_man);
     CryptedKeyMap m_map_crypted_keys GUARDED_BY(cs_desc_man);
diff --git a/src/wallet/walletutil.h b/src/wallet/walletutil.h
--- a/src/wallet/walletutil.h
+++ b/src/wallet/walletutil.h
@@ -99,13 +99,15 @@
 class WalletDescriptor {
 public:
     std::shared_ptr<Descriptor> descriptor;
-    uint64_t creation_time;
-    int32_t range_start; // First item in range; start of range, inclusive, i.e.
-                         // [range_start, range_end). This never changes.
-    int32_t range_end;   // Item after the last; end of range, exclusive, i.e.
-                         // [range_start, range_end). This will increment with
-                         // each TopUp()
-    int32_t next_index;  // Position of the next item to generate
+    uint64_t creation_time = 0;
+    // First item in range; start of range, inclusive, i.e.
+    // [range_start, range_end). This never changes.
+    int32_t range_start = 0;
+    // Item after the last; end of range, exclusive, i.e.
+    // [range_start, range_end). This will increment with each TopUp()
+    int32_t range_end = 0;
+    // Position of the next item to generate
+    int32_t next_index = 0;
     DescriptorCache cache;
 
     ADD_SERIALIZE_METHODS;