@@ -39,20 +39,20 @@
 }
 
 - (void)updateWithBuffer: (const void*)buffer
 		  length: (size_t)length
 {
-	@throw [OFNotImplementedException exceptionWithClass: isa
+	@throw [OFNotImplementedException exceptionWithClass: [self class]
 						    selector: _cmd];
 }
 
 - (uint8_t*)digest
 {
-	@throw [OFNotImplementedException exceptionWithClass: isa
+	@throw [OFNotImplementedException exceptionWithClass: [self class]
 						    selector: _cmd];
 }
 
 - (BOOL)isCalculated
 {
 	return calculated;
 }
 @end