--- a/Image.st	Mon Feb 22 09:06:26 2016 +0000
+++ b/Image.st	Tue Feb 23 06:56:54 2016 +0100
@@ -5740,7 +5740,11 @@
         photometric := self class defaultPhotometric
         "/ photometric := anImage photometric
     ] ifFalse:[
-        photometric := photometricOrNil
+        photometricOrNil == #rgba ifTrue:[
+            samplesPerPixel == 3 ifTrue:[ photometric := #rgb ]
+        ] ifFalse:[
+            photometric := photometricOrNil
+        ].
     ].
 
     photometric == #palette ifTrue:[