diff --git a/src/etc/ctags.rust b/src/etc/ctags.rust
index f0fab3347d163..b42edf7579a64 100644
--- a/src/etc/ctags.rust
+++ b/src/etc/ctags.rust
@@ -1,6 +1,6 @@
 --langdef=Rust
 --langmap=Rust:.rs
---regex-Rust=/^[ \t]*(pub[ \t]+)?fn[ \t]+([a-zA-Z0-9_]+)/\2/f,functions,function definitions/
+--regex-Rust=/^[ \t]*(#\[[^\]]\][ \t]*)*(pub[ \t]+)?(extern[ \t]+)?("[^"]+"[ \t]+)?(unsafe[ \t]+)?fn[ \t]+([a-zA-Z0-9_]+)/\6/f,functions,function definitions/
 --regex-Rust=/^[ \t]*(pub[ \t]+)?type[ \t]+([a-zA-Z0-9_]+)/\2/T,types,type definitions/
 --regex-Rust=/^[ \t]*(pub[ \t]+)?enum[ \t]+([a-zA-Z0-9_]+)/\2/g,enum,enumeration names/
 --regex-Rust=/^[ \t]*(pub[ \t]+)?struct[ \t]+([a-zA-Z0-9_]+)/\2/s,structure names/