diff --git a/sgsn/regen_makefile.sh b/sgsn/regen_makefile.sh
index a85f79c..0cf2e64 100755
--- a/sgsn/regen_makefile.sh
+++ b/sgsn/regen_makefile.sh
@@ -2,6 +2,6 @@
 
 FILES="*.ttcn *.ttcnpp BSSGP_EncDec.cc LLC_EncDec.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc NS_CodecPort_CtrlFunctDef.cc RLCMAC_EncDec.cc Native_FunctionDefs.cc TELNETasp_PT.cc IPA_CodecPort_CtrlFunctDef.cc GTPU_EncDec.cc GTPC_EncDec.cc GTP_CodecPort_CtrlFunctDef.cc"
 
-export CPPFLAGS_TTCN3="-DIPA_EMULATION_GSUP"
+export CPPFLAGS_TTCN3="-DIPA_EMULATION_GSUP -DIPA_EMULATION_CTRL"
 
 ../regen-makefile.sh SGSN_Tests.ttcn $FILES