diff --git a/Makefile b/Makefile
index 3b79032..d6efc31 100644
--- a/Makefile
+++ b/Makefile
@@ -53,6 +53,6 @@ clean: pdf-clean
 archive: pdf-make
 	$(MKDIR) "$(ARCHIVE_DIR)"
 	$(CP) "$(SRC_DIR)" "$(INC_DIR)" Makefile README.md "$(wildcard $(PDF_DIR)/*.pdf)" \
-	      "$(RES_DIR)" "$(ARCHIVE_DIR)"
+	      "$(RES_DIR)" "$(PDF_DIR)/imgs/DiagrammeUML.png" "$(ARCHIVE_DIR)"
 	$(TAR) "$(ARCHIVE)" "$(ARCHIVE_DIR)"
 	$(RM) "$(ARCHIVE_DIR)"