diff --git a/bsc-nat/regen_makefile.sh b/bsc-nat/regen_makefile.sh
index 6fb3ca4..6d0ac12 100755
--- a/bsc-nat/regen_makefile.sh
+++ b/bsc-nat/regen_makefile.sh
@@ -11,5 +11,5 @@
 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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/bsc/regen_makefile.sh b/bsc/regen_makefile.sh
index f037230..4e334d5 100755
--- a/bsc/regen_makefile.sh
+++ b/bsc/regen_makefile.sh
@@ -11,5 +11,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/ggsn_tests/regen_makefile.sh b/ggsn_tests/regen_makefile.sh
index b3e6332..cd2d95a 100755
--- a/ggsn_tests/regen_makefile.sh
+++ b/ggsn_tests/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/gprs_gb/regen_makefile.sh b/gprs_gb/regen_makefile.sh
index b45e5b4..72fc632 100755
--- a/gprs_gb/regen_makefile.sh
+++ b/gprs_gb/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/lapdm/regen_makefile.sh b/lapdm/regen_makefile.sh
index f2d1782..c80b094 100755
--- a/lapdm/regen_makefile.sh
+++ b/lapdm/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/mgw/regen_makefile.sh b/mgw/regen_makefile.sh
index df7ccc7..30f8c33 100755
--- a/mgw/regen_makefile.sh
+++ b/mgw/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/msc_tests/regen_makefile.sh b/msc_tests/regen_makefile.sh
index 0b4ab88..7db539d 100755
--- a/msc_tests/regen_makefile.sh
+++ b/msc_tests/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile
diff --git a/sysinfo/regen_makefile.sh b/sysinfo/regen_makefile.sh
index 1042090..e06b8f5 100755
--- a/sysinfo/regen_makefile.sh
+++ b/sysinfo/regen_makefile.sh
@@ -9,5 +9,5 @@
 sed -i -e 's/CPPFLAGS = -D$(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/TTCN3_DIR = $/TTCN3_DIR = \/usr/' Makefile
 sed -i -e 's/\/bin\/compiler/\/bin\/ttcn3_compiler/' Makefile