1 files changed, 1 insertions, 1 deletions
diff --git a/src/txmempool.h b/src/txmempool.h
index 78ad62aae6..15797cbc00 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -855,7 +855,7 @@ public:
     class EpochGuard {
         const CTxMemPool& pool;
         public:
-        EpochGuard(const CTxMemPool& in);
+        explicit EpochGuard(const CTxMemPool& in);
         ~EpochGuard();
     };
     // N.B. GetFreshEpoch modifies mutable state via the EpochGuard construction