diff --git a/src/chainparams.h b/src/chainparams.h
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -66,7 +66,7 @@
     bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
     /** Policy: Filter transactions that do not match well-defined patterns */
     bool RequireStandard() const { return fRequireStandard; }
-    /** If this is a test chain */
+    /** If this chain is exclusively used for testing */
     bool IsTestChain() const { return m_is_test_chain; }
     /** If this chain allows time to be mocked */
     bool IsMockableChain() const { return m_is_mockable_chain; }
diff --git a/src/chainparamsbase.h b/src/chainparamsbase.h
--- a/src/chainparamsbase.h
+++ b/src/chainparamsbase.h
@@ -7,7 +7,6 @@
 
 #include <memory>
 #include <string>
-#include <vector>
 
 /**
  * CBaseChainParams defines the base parameters
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -12,7 +12,6 @@
 #include <interfaces/handler.h>
 #include <outputtype.h>
 #include <primitives/blockhash.h>
-#include <streams.h>
 #include <tinyformat.h>
 #include <ui_interface.h>
 #include <util/strencodings.h>
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -4909,6 +4909,7 @@
         walletInstance->m_min_fee = CFeeRate(n);
     }
 
+    walletInstance->m_allow_fallback_fee = Params().IsTestChain();
     if (gArgs.IsArgSet("-fallbackfee")) {
         Amount nFeePerK = Amount::zero();
         if (!ParseMoney(gArgs.GetArg("-fallbackfee", ""), nFeePerK)) {