diff --git a/doc/gatt-api.txt b/doc/gatt-api.txt
index 95603fc..deb519b 100644
--- a/doc/gatt-api.txt
+++ b/doc/gatt-api.txt
@@ -67,10 +67,17 @@ Properties	string UUID [read-only]
 			Defines how the characteristic value can be used. See
 			Core spec "Table 3.5: Characteristic Properties bit
 			field", and "Table 3.8: Characteristic Extended
-			Properties bit field". Allowed values: "broadcast",
-			"read", "write-without-response", "write", "notify",
-			"indicate", "authenticated-signed-writes",
-			"reliable-write", and "writable-auxiliaries".
+			Properties bit field". Allowed values:
+
+				"broadcast"
+				"read"
+				"write-without-response"
+				"write"
+				"notify"
+				"indicate"
+				"authenticated-signed-writes"
+				"reliable-write"
+				"writable-auxiliaries"
 
 
 Characteristic Descriptors hierarchy