diff --git a/.gitignore b/.gitignore
index 8e20f50c..ee6f877f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ build/
 myabcs
 *.o
 *.exe
+*.dll
diff --git a/make_directives b/make_directives
index 00bf093a..64308342 100644
--- a/make_directives
+++ b/make_directives
@@ -141,7 +141,7 @@ uninstall:
 	find "$${data_dir}" -type d -empty -delete;
 
 clean:
-	rm -rf *.o *.exe $(EXE) *.core
+	rm -rf *.o *.exe $(EXE) *.core *.dll
 
 help:
 	@echo -e $(HELP_STRING)