diff --git a/tool/src/org/antlr/v4/parse/ANTLRParser.g b/tool/src/org/antlr/v4/parse/ANTLRParser.g
index 1b250e970..cf0b6b099 100644
--- a/tool/src/org/antlr/v4/parse/ANTLRParser.g
+++ b/tool/src/org/antlr/v4/parse/ANTLRParser.g
@@ -590,7 +590,7 @@ lexerElement
 labeledLexerElement
 	:	id (ass=ASSIGN|ass=PLUS_ASSIGN)
 		(	lexerAtom	-> ^($ass id lexerAtom)
-		|	block 		-> ^($ass id block)
+		|	lexerBlock	-> ^($ass id lexerBlock)
 		)
 	;