diff --git a/Makefile b/Makefile
index 9bdbd6bfa..d68fdb5e2 100644
--- a/Makefile
+++ b/Makefile
@@ -110,7 +110,7 @@ JSDEPS := $(patsubst ts/src/%.ts, web/%.js, $(TSDEPS))
 # Rust source
 ######################
 
-RSDEPS := $(shell find rs -type f | grep -v target)
+RSDEPS := $(shell find rs -type f | egrep -v 'target|/\.|proto.rs')
 
 # Building
 ######################