diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3034,6 +3034,7 @@
                 }
             } else {
                 reservekey.ReturnKey();
+                nChangePosInOut = -1;
             }
 
             // Fill vin
diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -49,6 +49,13 @@
         self.nodes[0].generate(121)
         self.sync_all()
 
+        # ensure that setting changePosition in fundraw with an exact match is handled properly
+        rawmatch = self.nodes[2].createrawtransaction(
+            [], {self.nodes[2].getnewaddress(): 50})
+        rawmatch = self.nodes[2].fundrawtransaction(
+            rawmatch, {"changePosition": 1, "subtractFeeFromOutputs": [0]})
+        assert_equal(rawmatch["changepos"], -1)
+
         watchonly_address = self.nodes[0].getnewaddress()
         watchonly_pubkey = self.nodes[
             0].validateaddress(watchonly_address)["pubkey"]