diff --git a/debian/matrix-synapse-py3.config b/debian/matrix-synapse-py3.config
index 37a781b3e8550a14344c1498020c2a239743ca2a..3b2f469e15623dfa19eba52034054c61f7f37fe7 100755
--- a/debian/matrix-synapse-py3.config
+++ b/debian/matrix-synapse-py3.config
@@ -2,6 +2,7 @@
 
 set -e
 
+# shellcheck disable=SC1091
 . /usr/share/debconf/confmodule
 
 # try to update the debconf db according to whatever is in the config files
diff --git a/debian/matrix-synapse-py3.postinst b/debian/matrix-synapse-py3.postinst
index c0dd7e5534e781d43745504bf13c76b4e3f61879..a8dde1e082f44f01bd3dd883e2fc49efd537ba55 100644
--- a/debian/matrix-synapse-py3.postinst
+++ b/debian/matrix-synapse-py3.postinst
@@ -1,5 +1,6 @@
 #!/bin/sh -e
 
+# shellcheck disable=SC1091
 . /usr/share/debconf/confmodule
 
 CONFIGFILE_SERVERNAME="/etc/matrix-synapse/conf.d/server_name.yaml"