diff --git a/.gitignore b/.gitignore
index 36dfd00..c7d1f65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@ symbol_table.txt
 vpi_wrapper_*
 builds/RV*/build_dir
 builds/RV*/Verilog_RTL
+.depends.mk