diff --git a/cdist/conf/type/__apt_source/man.rst b/cdist/conf/type/__apt_source/man.rst
index 58b03243..99b1bc4b 100644
--- a/cdist/conf/type/__apt_source/man.rst
+++ b/cdist/conf/type/__apt_source/man.rst
@@ -37,7 +37,7 @@ component
 OPTIONAL MULTIPLE PARAMETERS
 ----------------------------
 signed-by
-   provide a GPG key fingerprint or keyring path for signature checks. May be repeated.
+   provide a GPG key fingerprint or keyring path for signature checks.
 
 
 BOOLEAN PARAMETERS