diff --git a/cobc/pplex.l b/cobc/pplex.l
index 0c1491996..ada22042c 100644
--- a/cobc/pplex.l
+++ b/cobc/pplex.l
@@ -1003,8 +1003,7 @@ ENDIF_DIRECTIVE_STATE>{
 
 <IMP_DIRECTIVE_STATE>{
   "INCLUDE"		{ return INCLUDE; }		/* GnuCOBOL 3.3 extension */
-	{RAW_SEQ} |
-  {ALNUM_LITERAL}		{
+  {RAW_SEQ}		{
 	pplval.s = cobc_plex_strdup (yytext);
 	return TOKEN;
 	}