diff --git a/doc/adapter-api.txt b/doc/adapter-api.txt
index dccb6bf..916e941 100644
--- a/doc/adapter-api.txt
+++ b/doc/adapter-api.txt
@@ -24,7 +24,7 @@ Methods		dict GetProperties()
 		void SetProperty(string name, variant value)
 
 			Changes the value of the specified property. Only
-			properties that are listed a read-write are changeable.
+			properties that are listed as read-write are changeable.
 			On success this will emit a PropertyChanged signal.
 
 			Possible Errors: org.bluez.Error.InvalidArguments
diff --git a/doc/audio-api.txt b/doc/audio-api.txt
index 02291fd..9b1737d 100644
--- a/doc/audio-api.txt
+++ b/doc/audio-api.txt
@@ -122,7 +122,7 @@ Methods		void Connect()
 		void SetProperty(string name, variant value)
 
 			Changes the value of the specified property. Only
-			properties that are listed a read-write are changeable.
+			properties that are listed as read-write are changeable.
 			On success this will emit a PropertyChanged signal.
 
 			Possible Errors: org.bluez.Error.DoesNotExist
diff --git a/doc/device-api.txt b/doc/device-api.txt
index 4a170e4..0f34210 100644
--- a/doc/device-api.txt
+++ b/doc/device-api.txt
@@ -25,7 +25,7 @@ Methods		dict GetProperties()
 		void SetProperty(string name, variant value)
 
 			Changes the value of the specified property. Only
-			properties that are listed a read-write are changeable.
+			properties that are listed as read-write are changeable.
 			On success this will emit a PropertyChanged signal.
 
 			Possible Errors: org.bluez.Error.DoesNotExist
diff --git a/doc/media-api.txt b/doc/media-api.txt
index 4446439..e5eeaa0 100644
--- a/doc/media-api.txt
+++ b/doc/media-api.txt
@@ -289,7 +289,7 @@ Methods		dict GetProperties()
 		void SetProperty(string name, variant value)
 
 			Changes the value of the specified property. Only
-			properties that are listed a read-write can be changed.
+			properties that are listed as read-write can be changed.
 
 			On success this will emit a PropertyChanged signal.
 
diff --git a/doc/proximity-api.txt b/doc/proximity-api.txt
index 0c60d47..c8eae50 100644
--- a/doc/proximity-api.txt
+++ b/doc/proximity-api.txt
@@ -19,7 +19,7 @@ Methods		dict GetProperties()
 		void SetProperty(string name, variant value)
 
 			Changes the value of the specified property. Only
-			properties that are listed a read-write are changeable.
+			properties that are listed as read-write are changeable.
 			On success this will emit a PropertyChanged signal.
 
 			Possible Errors: org.bluez.Error.InvalidArguments