diff --git a/src/cpp/ripple/Transactor.cpp b/src/cpp/ripple/Transactor.cpp
index a95d4f398..4b65dd7fd 100644
--- a/src/cpp/ripple/Transactor.cpp
+++ b/src/cpp/ripple/Transactor.cpp
@@ -57,7 +57,9 @@ TER Transactor::payFee()
 	// Only check fee is sufficient when the ledger is open.
 	if (isSetBit(mParams, tapOPEN_LEDGER) && saPaid < mFeeDue)
 	{
-		cLog(lsINFO) << "applyTransaction: insufficient fee";
+		cLog(lsINFO) << boost::str(boost::format("applyTransaction: Insufficient fee paid: %s/%s")
+			% saPaid.getText()
+			% mFeeDue.getText());
 
 		return telINSUF_FEE_P;
 	}