@@ -36,12 +36,12 @@
 {
 	self = [super init];
 
 	@try {
 		void *pool = objc_autoreleasePoolPush();
-		const char *cString = [stringValue UTF8String];
-		size_t length = [stringValue UTF8StringLength];
+		const char *cString = stringValue.UTF8String;
+		size_t length = stringValue.UTF8StringLength;
 
 		for (size_t i = 0; i < length; i++)
 			if (!of_ascii_isdigit(cString[i]) && cString[i] != ' ')
 				@throw [OFInvalidEncodingException exception];
 
@@ -68,17 +68,17 @@
 		if (tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
 		    tagNumber != OF_ASN1_TAG_NUMBER_NUMERIC_STRING ||
 		    constructed)
 			@throw [OFInvalidArgumentException exception];
 
-		if ([DEREncodedContents itemSize] != 1)
+		if (DEREncodedContents.itemSize != 1)
 			@throw [OFInvalidArgumentException exception];
 
 		numericStringValue = [OFString
-		    stringWithCString: [DEREncodedContents items]
+		    stringWithCString: DEREncodedContents.items
 			     encoding: OF_STRING_ENCODING_ASCII
-			       length: [DEREncodedContents count]];
+			       length: DEREncodedContents.count];
 	} @catch (id e) {
 		[self release];
 		@throw e;
 	}
 
@@ -101,11 +101,11 @@
 	[super dealloc];
 }
 
 - (OFString *)stringValue
 {
-	return [self numericStringValue];
+	return self.numericStringValue;
 }
 
 - (bool)isEqual: (id)object
 {
 	OFASN1NumericString *numericString;
@@ -121,14 +121,14 @@
 	return true;
 }
 
 - (uint32_t)hash
 {
-	return [_numericStringValue hash];
+	return _numericStringValue.hash;
 }
 
 - (OFString *)description
 {
 	return [OFString stringWithFormat: @"<OFASN1NumericString: %@>",
 					   _numericStringValue];
 }
 @end