diff --git a/Makefile b/Makefile
index fdb1897f4..e2906c21a 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ tools/doctest: tools/doctest.hs
 PROFBIN=hledgerp
 BUILDPROF=ghc $(BUILDFLAGS) --make hledger.hs -prof -auto-all -o $(PROFBIN)
 RUNPROF=./$(PROFBIN) +RTS -p -RTS
-PROFCMD=-f sample1000.ledger -s balance
+PROFCMD=-f 1000.ledger -s balance
 TIME=`date +"%Y%m%d%H%M"`
 buildprof prof: sampleledgers
 	@echo "Profiling $(PROFCMD)"
@@ -80,9 +80,10 @@ buildbench:
 
 # generate sample ledgers
 sampleledgers:
-	ghc -e 'putStr $$ unlines $$ replicate 1000 "!include sample.ledger"' >sample1000.ledger
-	ghc -e 'putStr $$ unlines $$ replicate 10000 "!include sample.ledger"' >sample10000.ledger
-	ghc -e 'putStr $$ unlines $$ replicate 100000 "!include sample.ledger"' >sample10000.ledger
+	ghc -e 'putStr $$ unlines $$ replicate 1000 "!include sample.ledger"' >1000.ledger
+	ghc -e 'putStr $$ unlines $$ replicate 10000 "!include sample.ledger"' >10000.ledger
+	ghc -e 'putStr $$ unlines $$ replicate 100000 "!include sample.ledger"' >100000.ledger
+  # XXX should also generate sample.ledger with write_sample_ledger
 
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 send: