diff --git a/bts/regen_makefile.sh b/bts/regen_makefile.sh
index 42ad0f3..850e0bf 100755
--- a/bts/regen_makefile.sh
+++ b/bts/regen_makefile.sh
@@ -1,7 +1,29 @@
 #!/bin/sh
 
-FILES="*.ttcn *.ttcnpp IPA_CodecPort_CtrlFunctDef.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc UD_PT.cc RLCMAC_EncDec.cc Native_FunctionDefs.cc TRXC_CodecPort_CtrlFunctDef.cc L1CTL_PortType_CtrlFunctDef.cc TELNETasp_PT.cc IuUP_EncDec.cc RTP_EncDec.cc RTP_CodecPort_CtrlFunctDef.cc"
+FILES="
+	*.ttcn
+	*.ttcnpp
+	IPA_CodecPort_CtrlFunctDef.cc
+	IPL4asp_PT.cc
+	IPL4asp_discovery.cc
+	IuUP_EncDec.cc
+	L1CTL_PortType_CtrlFunctDef.cc
+	Native_FunctionDefs.cc
+	RLCMAC_EncDec.cc
+	RTP_CodecPort_CtrlFunctDef.cc
+	RTP_EncDec.cc
+	TCCConversion.cc
+	TCCInterface.cc
+	TELNETasp_PT.cc
+	TRXC_CodecPort_CtrlFunctDef.cc
+	UD_PT.cc
+"
 
-export CPPFLAGS_TTCN3="-DIPA_EMULATION_RSL -DIPA_EMULATION_OML -DIPA_EMULATION_CTRL -DIPA_EMULATION_OSMO_PCU"
+export CPPFLAGS_TTCN3="
+	-DIPA_EMULATION_CTRL
+	-DIPA_EMULATION_OML
+	-DIPA_EMULATION_OSMO_PCU
+	-DIPA_EMULATION_RSL
+"
 
 ../regen-makefile.sh BTS_Tests.ttcn $FILES