diff --git a/lcl/interfaces/carbon/carbonwinapi.inc b/lcl/interfaces/carbon/carbonwinapi.inc
index 2a5a0134b0..5b3ebde1de 100644
--- a/lcl/interfaces/carbon/carbonwinapi.inc
+++ b/lcl/interfaces/carbon/carbonwinapi.inc
@@ -262,7 +262,7 @@ begin
   if BitmapBits = nil then
   begin
     if BitCount = 24 then BitCount := 32;
-    if BitCount = 1 then BitCount := 8;
+    // if BitCount = 1 then BitCount := 8;
   end;
   
   case BitCount of