diff --git a/_config/nvim/UltiSnips/make.snippets b/_config/nvim/UltiSnips/make.snippets
index b0ded7b..6251193 100644
--- a/_config/nvim/UltiSnips/make.snippets
+++ b/_config/nvim/UltiSnips/make.snippets
@@ -17,9 +17,11 @@ $1: $1.cpp
 endsnippet
 
 snippet bsv
+SRC := $(wildcard *.bsv)
+
 $1: $1.bo
 	bsc -u -sim -e mk$1 -o $@
 
-$1.bo: $1.bsv
+$1.bo: $1.bsv $(SRC)
 	bsc -u -sim -g mk$1 $<
 endsnippet