1 files changed, 1 insertions, 1 deletions
diff --git a/src/policy/feerate.h b/src/policy/feerate.h
index 85d7d22b4f..d081f2ce8e 100644
--- a/src/policy/feerate.h
+++ b/src/policy/feerate.h
@@ -25,7 +25,7 @@ public:
     /** Fee rate of 0 satoshis per kB */
     CFeeRate() : nSatoshisPerK(0) { }
     template<typename I>
-    CFeeRate(const I _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) {
+    explicit CFeeRate(const I _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) {
         // We've previously had bugs creep in from silent double->int conversion...
         static_assert(std::is_integral<I>::value, "CFeeRate should be used without floats");
     }