diff --git a/debian/_base/applications/tde-guidance/debian/rules b/debian/_base/applications/tde-guidance/debian/rules
index 656eac6d4..b4a195a5c 100755
--- a/debian/_base/applications/tde-guidance/debian/rules
+++ b/debian/_base/applications/tde-guidance/debian/rules
@@ -1,6 +1,6 @@
 #!/usr/bin/make -f
 
-DEB_PYTHON_SYSTEM = $(if $(wildcard /usr/bin/dh_pysupport),pysupport)
+DEB_PYTHON_SYSTEM = $(if $(wildcard /usr/bin/dh_python2),,pysupport)
 DEB_PYTHON2_MODULE_PACKAGES=tde-guidance-trinity guidance-backends-trinity
 PYSUPPORT_INST_PATH = /opt/trinity/share/python-support
 GUIDANCE_INST_PATH = $(PYSUPPORT_INST_PATH)/tde-guidance-trinity
diff --git a/ubuntu/_base/applications/tde-guidance/debian/rules b/ubuntu/_base/applications/tde-guidance/debian/rules
old mode 100644
new mode 100755
index 656eac6d4..b4a195a5c
--- a/ubuntu/_base/applications/tde-guidance/debian/rules
+++ b/ubuntu/_base/applications/tde-guidance/debian/rules
@@ -1,6 +1,6 @@
 #!/usr/bin/make -f
 
-DEB_PYTHON_SYSTEM = $(if $(wildcard /usr/bin/dh_pysupport),pysupport)
+DEB_PYTHON_SYSTEM = $(if $(wildcard /usr/bin/dh_python2),,pysupport)
 DEB_PYTHON2_MODULE_PACKAGES=tde-guidance-trinity guidance-backends-trinity
 PYSUPPORT_INST_PATH = /opt/trinity/share/python-support
 GUIDANCE_INST_PATH = $(PYSUPPORT_INST_PATH)/tde-guidance-trinity