diff --git a/scripts/_common.sh b/scripts/_common.sh
index 05326162..f6a9538d 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -274,13 +274,7 @@ ynh_install_extra_repo () {
 	if [ -n "$key" ]
 	then
 		mkdir -p "/etc/apt/trusted.gpg.d"
-		if [[ "$(basename "$key")" =~ ".asc" ]]
-		then
-			local key_ext=asc
-		else
-			local key_ext=gpg
-		fi
-		wget -q "$key" -O - | gpg --dearmor | $wget_append /etc/apt/trusted.gpg.d/$name.$key_ext > /dev/null
+		wget -q "$key" -O - | gpg --dearmor | $wget_append /etc/apt/trusted.gpg.d/$name.gpg > /dev/null
 	fi
 
 	# Update the list of package with the new repo