diff --git a/src/backend/parser/scan.l b/src/backend/parser/scan.l
index c97db94611..a0212898f9 100644
--- a/src/backend/parser/scan.l
+++ b/src/backend/parser/scan.l
@@ -435,7 +435,6 @@ param			\${decdigit}+
 integer_junk	{decinteger}{identifier}
 numeric_junk	{numeric}{identifier}
 real_junk		{real}{identifier}
-param_junk		\${decdigit}+{identifier}
 
 other			.
 
@@ -1010,10 +1009,6 @@ other			.
 					yylval->ival = atol(yytext + 1);
 					return PARAM;
 				}
-{param_junk}	{
-					SET_YYLLOC();
-					yyerror("trailing junk after parameter");
-				}
 
 {decinteger}	{
 					SET_YYLLOC();