diff --git a/packages/mermaid/src/diagrams/gantt/parser/gantt.jison b/packages/mermaid/src/diagrams/gantt/parser/gantt.jison
index 5479629ff..9866e8ba0 100644
--- a/packages/mermaid/src/diagrams/gantt/parser/gantt.jison
+++ b/packages/mermaid/src/diagrams/gantt/parser/gantt.jison
@@ -5,7 +5,7 @@
  */
 %lex
 
-%options case-insensitivegit
+%options case-insensitive
 
 %x click
 %x href