diff --git a/sylvilagus/Makefile b/sylvilagus/Makefile
index 77aea37..2aa372c 100644
--- a/sylvilagus/Makefile
+++ b/sylvilagus/Makefile
@@ -19,6 +19,7 @@ fmt:
 
 clean:
 	rm -v bin/*
+	find pkg -name '*.a' -exec rm -v {} \;
 
 env:
 	@echo GOPATH=$(GOPATH)