diff --git a/selftest/regen_makefile.sh b/selftest/regen_makefile.sh
new file mode 100755
index 0000000..b4780a0
--- /dev/null
+++ b/selftest/regen_makefile.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+MAIN=Selftest.ttcn
+
+FILES="*.ttcn IPA_CodecPort_CtrlFunctDef.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc SDP_EncDec.cc *.c"
+
+ttcn3_makefilegen -l -f $MAIN $FILES
+#sed -i -e 's/# TTCN3_DIR = /TTCN3_DIR = \/usr/' Makefile
+sed -i -e 's/LDFLAGS = /LDFLAGS = -L \/usr\/lib\/titan /' Makefile
+#sed -i -e 's/TTCN3_LIB = ttcn3-parallel/TTCN3_LIB = ttcn3/' Makefile
+sed -i -e 's/CPPFLAGS = -D$(PLATFORM) -I$(TTCN3_DIR)\/include/CPPFLAGS = -D$(PLATFORM) -I$(TTCN3_DIR)\/include -I\/usr\/include\/titan/' Makefile
+
+# for TITAN 6.3.0
+sed -i -e 's/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
+sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile