diff --git a/convert-dtsv0-lexer.l b/convert-dtsv0-lexer.l
index 548e719..259e527 100644
--- a/convert-dtsv0-lexer.l
+++ b/convert-dtsv0-lexer.l
@@ -19,7 +19,6 @@
 
 %option noyywrap nounput noinput never-interactive
 
-%x INCLUDE
 %x BYTESTRING
 %x PROPNODENAME
 
diff --git a/dtc-lexer.l b/dtc-lexer.l
index 5c9969f..0ee1caf 100644
--- a/dtc-lexer.l
+++ b/dtc-lexer.l
@@ -20,7 +20,6 @@
 
 %option noyywrap nounput noinput never-interactive
 
-%x INCLUDE
 %x BYTESTRING
 %x PROPNODENAME
 %s V1