diff --git a/consensus/state.go b/consensus/state.go
index 780fc3af5..146344437 100644
--- a/consensus/state.go
+++ b/consensus/state.go
@@ -2128,7 +2128,12 @@ func (cs *State) addVote(vote *types.Vote, peerID p2p.NodeID) (added bool, err e
 
 	case tmproto.PrecommitType:
 		precommits := cs.Votes.Precommits(vote.Round)
-		cs.Logger.Debug("added vote to precommit", "vote", vote, "precommits", precommits.StringShort())
+		cs.Logger.Debug("added vote to precommit",
+			"height", vote.Height,
+			"round", vote.Round,
+			"validator", vote.ValidatorAddress.String(),
+			"vote_timestamp", vote.Timestamp,
+			"data", precommits.LogString())
 
 		blockID, ok := precommits.TwoThirdsMajority()
 		if ok {
diff --git a/types/block.go b/types/block.go
index dae8830b7..7716fda16 100644
--- a/types/block.go
+++ b/types/block.go
@@ -1189,7 +1189,7 @@ func (blockID BlockID) Key() string {
 		panic(err)
 	}
 
-	return string(blockID.Hash) + string(bz)
+	return fmt.Sprint(string(blockID.Hash), string(bz))
 }
 
 // ValidateBasic performs basic validation.
diff --git a/types/vote_set.go b/types/vote_set.go
index 4449612e1..3e023a735 100644
--- a/types/vote_set.go
+++ b/types/vote_set.go
@@ -442,12 +442,14 @@ func (voteSet *VoteSet) TwoThirdsMajority() (blockID BlockID, ok bool) {
 //--------------------------------------------------------------------------------
 // Strings and JSON
 
+const nilVoteSetString = "nil-VoteSet"
+
 // String returns a string representation of VoteSet.
 //
 // See StringIndented.
 func (voteSet *VoteSet) String() string {
 	if voteSet == nil {
-		return "nil-VoteSet"
+		return nilVoteSetString
 	}
 	return voteSet.StringIndented("")
 }
@@ -551,7 +553,7 @@ func (voteSet *VoteSet) voteStrings() []string {
 // 7. 2/3+ majority for each peer
 func (voteSet *VoteSet) StringShort() string {
 	if voteSet == nil {
-		return "nil-VoteSet"
+		return nilVoteSetString
 	}
 	voteSet.mtx.Lock()
 	defer voteSet.mtx.Unlock()
@@ -560,6 +562,19 @@ func (voteSet *VoteSet) StringShort() string {
 		voteSet.height, voteSet.round, voteSet.signedMsgType, voteSet.maj23, frac, voteSet.votesBitArray, voteSet.peerMaj23s)
 }
 
+// LogString produces a logging suitable string representation of the
+// vote set.
+func (voteSet *VoteSet) LogString() string {
+	if voteSet == nil {
+		return nilVoteSetString
+	}
+	voteSet.mtx.Lock()
+	defer voteSet.mtx.Unlock()
+	voted, total, frac := voteSet.sumTotalFrac()
+
+	return fmt.Sprintf("Votes:%d/%d(%.3f)", voted, total, frac)
+}
+
 // return the power voted, the total, and the fraction
 func (voteSet *VoteSet) sumTotalFrac() (int64, int64, float64) {
 	voted, total := voteSet.sum, voteSet.valSet.TotalVotingPower()