diff --git a/gateway/debian/preinst b/gateway/debian/preinst
index 32ebe1ebd2..83fdb8fe1d 100644
--- a/gateway/debian/preinst
+++ b/gateway/debian/preinst
@@ -21,4 +21,6 @@ else
     echo "No existing nym-gateway installation detected. Proceeding with fresh installation."
 fi
 
-exit 0
\ No newline at end of file
+exit 0
+
+#DEBHELPER#
diff --git a/mixnode/debian/preinst b/mixnode/debian/preinst
index 8c6666f5a1..49adf297c9 100644
--- a/mixnode/debian/preinst
+++ b/mixnode/debian/preinst
@@ -21,4 +21,6 @@ else
     echo "No existing nym-mixnode installation detected. Proceeding with fresh installation."
 fi
 
-exit 0
\ No newline at end of file
+exit 0
+
+#DEBHELPER#