diff --git a/src/test/validationinterface_tests.cpp b/src/test/validationinterface_tests.cpp
--- a/src/test/validationinterface_tests.cpp
+++ b/src/test/validationinterface_tests.cpp
@@ -22,7 +22,7 @@
     // Start thread to generate notifications
     std::thread gen{[&] {
         const CBlock block_dummy;
-        const BlockValidationState state_dummy;
+        BlockValidationState state_dummy;
         while (generate) {
             GetMainSignals().BlockChecked(block_dummy, state_dummy);
         }