diff --git a/doc/salome/gui/SMESH/doxyfile_py.in b/doc/salome/gui/SMESH/doxyfile_py.in
index 94359dfd5..a7c2e2a9d 100755
--- a/doc/salome/gui/SMESH/doxyfile_py.in
+++ b/doc/salome/gui/SMESH/doxyfile_py.in
@@ -144,6 +144,7 @@ CALL_GRAPH             = NO
 GRAPHICAL_HIERARCHY    = NO
 DIRECTORY_GRAPH        = NO
 DOT_IMAGE_FORMAT       = jpg
+DOT_FONTNAME           = Arial
 DOT_PATH               = 
 DOTFILE_DIRS           = 
 MAX_DOT_GRAPH_WIDTH    = 1024
diff --git a/doc/salome/tui/doxyfile.in b/doc/salome/tui/doxyfile.in
index a630644be..e613cbf14 100755
--- a/doc/salome/tui/doxyfile.in
+++ b/doc/salome/tui/doxyfile.in
@@ -248,6 +248,7 @@ CALL_GRAPH             = NO
 GRAPHICAL_HIERARCHY    = YES
 DIRECTORY_GRAPH        = YES
 DOT_IMAGE_FORMAT       = png
+DOT_FONTNAME           = Arial
 DOT_PATH               = 
 DOTFILE_DIRS           = 
 MAX_DOT_GRAPH_WIDTH    = 1024