diff --git a/src/EFCore.Relational/Query/QuerySqlGenerator.cs b/src/EFCore.Relational/Query/QuerySqlGenerator.cs
index 2d953aa6d13..7dd6cbf143d 100644
--- a/src/EFCore.Relational/Query/QuerySqlGenerator.cs
+++ b/src/EFCore.Relational/Query/QuerySqlGenerator.cs
@@ -602,11 +602,14 @@ protected override Expression VisitSqlParameter(SqlParameterExpression sqlParame
         // data twice.
         // Note that if the type mapping differs, we do send the same data twice (e.g. the same string may be sent once as Unicode, once as
         // non-Unicode).
-        var parameter = _relationalCommandBuilder.Parameters.FirstOrDefault(p =>
-            p.InvariantName == parameterName
-            && p is TypeMappedRelationalParameter typeMappedRelationalParameter
-            && typeMappedRelationalParameter.RelationalTypeMapping.StoreType == sqlParameterExpression.TypeMapping!.StoreType
-            && typeMappedRelationalParameter.RelationalTypeMapping.Converter == sqlParameterExpression.TypeMapping!.Converter);
+        var parameter = _relationalCommandBuilder.Parameters.FirstOrDefault(
+            p =>
+                p.InvariantName == parameterName
+                && p is TypeMappedRelationalParameter typeMappedRelationalParameter
+                && string.Equals(
+                    typeMappedRelationalParameter.RelationalTypeMapping.StoreType, sqlParameterExpression.TypeMapping!.StoreType,
+                    StringComparison.OrdinalIgnoreCase)
+                && typeMappedRelationalParameter.RelationalTypeMapping.Converter == sqlParameterExpression.TypeMapping!.Converter);
 
         if (parameter is null)
         {