diff --git a/src/dsql/ExprNodes.cpp b/src/dsql/ExprNodes.cpp
index 607af6390f..717ae20044 100644
--- a/src/dsql/ExprNodes.cpp
+++ b/src/dsql/ExprNodes.cpp
@@ -5362,7 +5362,7 @@ void GenIdNode::setParameterName(dsql_par* parameter) const
 }
 
 bool GenIdNode::setParameterType(DsqlCompilerScratch* dsqlScratch,
-	dsql_nod* node, bool forceVarChar) const
+	dsql_nod* node, bool forceVarChar)
 {
 	return PASS1_set_parameter_type(dsqlScratch, dsqlArg, node, forceVarChar);
 }
diff --git a/src/dsql/ExprNodes.h b/src/dsql/ExprNodes.h
index 10999e3b69..bda4d5af2d 100644
--- a/src/dsql/ExprNodes.h
+++ b/src/dsql/ExprNodes.h
@@ -574,7 +574,7 @@ public:
 	virtual ValueExprNode* dsqlPass(DsqlCompilerScratch* dsqlScratch);
 	virtual void setParameterName(dsql_par* parameter) const;
 	virtual bool setParameterType(DsqlCompilerScratch* dsqlScratch,
-		dsql_nod* node, bool forceVarChar) const;
+		dsql_nod* node, bool forceVarChar);
 	virtual void genBlr(DsqlCompilerScratch* dsqlScratch);
 	virtual void make(DsqlCompilerScratch* dsqlScratch, dsc* desc);