diff --git a/src/apps/debugger/user_interface/gui/team_window/SourceView.h b/src/apps/debugger/user_interface/gui/team_window/SourceView.h
index 9acd586356..efe25e6f71 100644
--- a/src/apps/debugger/user_interface/gui/team_window/SourceView.h
+++ b/src/apps/debugger/user_interface/gui/team_window/SourceView.h
@@ -63,6 +63,10 @@ private:
 			class MarkerView;
 			class TextView;
 
+			// for gcc2
+			friend class TextView;
+			friend class MarkerView;
+
 			struct FontInfo {
 				BFont		font;
 				font_height	fontHeight;