@@ -14,12 +14,11 @@
  */
 
 #include "config.h"
 
 #import "OFColor.h"
-
-#import "once.h"
+#import "OFOnce.h"
 
 #import "OFInvalidArgumentException.h"
 
 @implementation OFColor
 #define PREDEFINED_COLOR(name, redValue, greenValue, blueValue)		   \