diff --git a/Makefile.am b/Makefile.am
index dc0e6d8f7..e5bc9b99c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -118,7 +118,8 @@ test_bitcoin_filtered.info: test_bitcoin.info
 	$(LCOV) -r $< "/usr/include/*" -o $@
 
 block_test.info: test_bitcoin_filtered.info
-	-@TIMEOUT=15 qa/pull-tester/run-bitcoind-for-test.sh $(JAVA) -Xmx2G -jar $(JAVA_COMPARISON_TOOL) 1 18444
+	$(MKDIR_P) qa/tmp
+	-@TIMEOUT=15 qa/pull-tester/run-bitcoind-for-test.sh $(JAVA) -jar $(JAVA_COMPARISON_TOOL) qa/tmp/compTool 1 18444
 	$(LCOV) -c -d $(abs_builddir)/src --t BitcoinJBlockTest -o $@
 	$(LCOV) -z -d $(abs_builddir)/src
 	$(LCOV) -z -d $(abs_builddir)/src/leveldb
@@ -146,7 +147,8 @@ endif
 
 if USE_COMPARISON_TOOL
 check-local:
-	@qa/pull-tester/run-bitcoind-for-test.sh $(JAVA) -Xmx2G -jar $(JAVA_COMPARISON_TOOL) 1 18444
+	$(MKDIR_P) qa/tmp
+	@qa/pull-tester/run-bitcoind-for-test.sh $(JAVA) -jar $(JAVA_COMPARISON_TOOL) qa/tmp/compTool 1 18444
 endif
 
 EXTRA_DIST = $(top_srcdir)/share/genbuild.sh qa/pull-tester/pull-tester.sh $(WINDOWS_PACKAGING) $(OSX_PACKAGING)
diff --git a/qa/pull-tester/build-tests.sh.in b/qa/pull-tester/build-tests.sh.in
index 461e7be04..392ff12dc 100755
--- a/qa/pull-tester/build-tests.sh.in
+++ b/qa/pull-tester/build-tests.sh.in
@@ -32,10 +32,7 @@ cd @abs_top_srcdir@
 make distdir
 mv $DISTDIR linux-build
 cd linux-build
-# TODO: re-enable blockchain tester tool, as of 11 Oct 2013 is it not working properly
-# on the pull-tester machine.
-#./configure --disable-silent-rules --disable-ccache --with-comparison-tool="$JAVA_COMPARISON_TOOL"
-./configure --disable-silent-rules --disable-ccache
+./configure --disable-silent-rules --disable-ccache --with-comparison-tool="$JAVA_COMPARISON_TOOL"
 make -j$JOBS
 
 # link interesting binaries to parent out/ directory, if it exists. Do this before
diff --git a/qa/pull-tester/run-bitcoind-for-test.sh.in b/qa/pull-tester/run-bitcoind-for-test.sh.in
index e02fef3b5..e8bcb4bf7 100755
--- a/qa/pull-tester/run-bitcoind-for-test.sh.in
+++ b/qa/pull-tester/run-bitcoind-for-test.sh.in
@@ -5,7 +5,7 @@ mkdir -p "$DATADIR"/regtest
 touch "$DATADIR/regtest/debug.log"
 tail -q -n 1 -F "$DATADIR/regtest/debug.log" | grep -m 1 -q "Done loading" &
 WAITER=$!
-"@abs_top_builddir@/src/bitcoind@EXEEXT@" -connect=0.0.0.0 -datadir="$DATADIR" -rpcuser=user -rpcpassword=pass -listen -keypool=3 -debug -logtimestamps -port=18444 -regtest &
+"@abs_top_builddir@/src/bitcoind@EXEEXT@" -connect=0.0.0.0 -datadir="$DATADIR" -rpcuser=user -rpcpassword=pass -listen -keypool=3 -debug -debug=net -logtimestamps -port=18444 -regtest &
 BITCOIND=$!
 
 #Install a watchdog.