diff --git a/src/dsql/DdlNodes.epp b/src/dsql/DdlNodes.epp
index b5c24a6146f..9d4b71f08db 100644
--- a/src/dsql/DdlNodes.epp
+++ b/src/dsql/DdlNodes.epp
@@ -390,7 +390,7 @@ void defineComputed(DsqlCompilerScratch* dsqlScratch, RelationSourceNode* relati
 			field->subType = desc.dsc_sub_type;
 	}
 
-	if (field->precision == 0 && field->scale != 0)
+	if (field && field->precision == 0 && field->scale != 0)
 	{
 		switch (field->dtype)
 		{