diff --git a/test/e2e b/test/e2e
index 85e344c8..8847ca00 160000
--- a/test/e2e
+++ b/test/e2e
@@ -1 +1 @@
-Subproject commit 85e344c83efb747b123758212e216f9f6a355da2
+Subproject commit 8847ca00a0deda194008bb2d8dccc02d879267d2
diff --git a/traceql/traceql.bnf b/traceql/traceql.bnf
index d9f21c12..366698ce 100644
--- a/traceql/traceql.bnf
+++ b/traceql/traceql.bnf
@@ -13,7 +13,7 @@ cmp ::= "="|"!="|"<="|">="|"<"|">"
 cmp_val ::= <number> [<measurement>]
 measurement ::= "ns"|"us"|"ms"|"s"|"m"|"h"|"d"
 
-label_name ::= ("." | <ALPHA> | "_") *("." | <ALPHA> | "_" | <DIGITS>)
+label_name ::= ("." | <ALPHA> | "-" | "_") *("." | <ALPHA> | "_" | "-" | <DIGITS>)
 number ::= ["-"] <DIGITS> ["." <DIGITS>]
 
 attr_selector ::= <label_name> <OWSP> <op> <OWSP> <value>