diff --git a/mff.cls b/mff.cls
index 9f6d59a9fd3cb550c4c86c7af315f766aaf74609..d4db22c89b1c549fbd3b16065799745667218633 100644
--- a/mff.cls
+++ b/mff.cls
@@ -117,7 +117,7 @@
 %
 \def\zahlavi{
 	\def\logomff{   % obrázek loga MFF
-		\includegraphics[scale=0.70]{logotyp_mff_cs}
+		\includegraphics[scale=0.70]{logotyp_mff_\ifmffcolor color\else bw\fi_cs}
 			% faktor zmenšení 0.70 odpovídá průměru loga 25 mm (PJVSUK)
 	}
 	\vbox to 16mm{
diff --git a/test.tex b/test.tex
index 7b7fbb620587bbf4337a29bce5ae3551349feedf..2ed81f3eeab9d962d9d7089c18b03ea1b0903bd7 100644
--- a/test.tex
+++ b/test.tex
@@ -1,4 +1,4 @@
-\documentclass[mono]{mff}
+\documentclass[color]{mff}
 
 \begin{document}