diff --git a/src/main.h b/src/main.h
index 9dca40066..ab4a40fc0 100644
--- a/src/main.h
+++ b/src/main.h
@@ -171,7 +171,7 @@ extern CFeeRate minRelayTxFee;
 /** Absolute maximum transaction fee (in satoshis) used by wallet and mempool (rejects high fee in sendrawtransaction) */
 extern CAmount maxTxFee;
 extern bool fAlerts;
-/* If the tip is older than this (in seconds), the node is considered to be in initial block download. */
+/** If the tip is older than this (in seconds), the node is considered to be in initial block download. */
 extern int64_t nMaxTipAge;
 
 /** Best header we've seen so far (used for getheaders queries' starting points). */