diff --git a/src/Makefile b/src/Makefile
index 5a390538d..11bcb9adc 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -541,6 +541,7 @@ clean:
 	-$(RM)	drivers/GDI/*.o
 	-$(RM)	drivers/OpenGL/*.o
 	-$(RM)	drivers/Posix/*.o
+	-$(RM)	drivers/PostScript/*.o
 	-$(RM)	drivers/Quartz/*.o
 	-$(RM)	drivers/WinAPI/*.o
 	-$(RM)	drivers/X11/*.o