diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
index d894470f78c579..00bbb83e118d57 100644
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -1468,7 +1468,7 @@ BOOST_AUTO_TEST_CASE(script_HasValidOps)
     BOOST_CHECK(!script.HasValidOps());
 }
 
-static const std::string DatacarrierBytesStr(const CScript &script) {
+static std::string DatacarrierBytesStr(const CScript &script) {
     auto dcb = script.DatacarrierBytes();
     return strprintf("%s+%s", dcb.first, dcb.second);
 }