diff --git a/test/EFCore.Cosmos.FunctionalTests/Query/NorthwindFunctionsQueryCosmosTest.cs b/test/EFCore.Cosmos.FunctionalTests/Query/NorthwindFunctionsQueryCosmosTest.cs
index 0e2e3e194b4..b0d22270226 100644
--- a/test/EFCore.Cosmos.FunctionalTests/Query/NorthwindFunctionsQueryCosmosTest.cs
+++ b/test/EFCore.Cosmos.FunctionalTests/Query/NorthwindFunctionsQueryCosmosTest.cs
@@ -763,7 +763,7 @@ public override async Task Where_mathf_log_new_base(bool async)
             """
 SELECT c
 FROM root c
-WHERE (((c["Discriminator"] = "OrderDetail") AND ((c["OrderID"] = 11077) AND (c["Discount"] > 0.0))) AND (LOG(c["Discount"], 7.0) < 0.0))
+WHERE (((c["Discriminator"] = "OrderDetail") AND ((c["OrderID"] = 11077) AND (c["Discount"] > 0.0))) AND (LOG(c["Discount"], 7.0) < -1.0))
 """);
     }
 
diff --git a/test/EFCore.Specification.Tests/Query/NorthwindFunctionsQueryTestBase.cs b/test/EFCore.Specification.Tests/Query/NorthwindFunctionsQueryTestBase.cs
index 130c86aacff..61e9dc21901 100644
--- a/test/EFCore.Specification.Tests/Query/NorthwindFunctionsQueryTestBase.cs
+++ b/test/EFCore.Specification.Tests/Query/NorthwindFunctionsQueryTestBase.cs
@@ -955,7 +955,7 @@ public virtual Task Where_math_log(bool async)
     public virtual Task Where_math_log_new_base(bool async)
         => AssertQuery(
             async,
-            ss => ss.Set<OrderDetail>().Where(od => od.OrderID == 11077 && od.Discount > 0).Where(od => Math.Log(od.Discount, 7) < 0));
+            ss => ss.Set<OrderDetail>().Where(od => od.OrderID == 11077 && od.Discount > 0).Where(od => Math.Log(od.Discount, 7) < -1));
 
     [ConditionalTheory]
     [MemberData(nameof(IsAsyncData))]
@@ -1190,7 +1190,7 @@ public virtual Task Where_mathf_log(bool async)
     public virtual Task Where_mathf_log_new_base(bool async)
         => AssertQuery(
             async,
-            ss => ss.Set<OrderDetail>().Where(od => od.OrderID == 11077 && od.Discount > 0).Where(od => MathF.Log(od.Discount, 7) < 0));
+            ss => ss.Set<OrderDetail>().Where(od => od.OrderID == 11077 && od.Discount > 0).Where(od => MathF.Log(od.Discount, 7) < -1));
 
     [ConditionalTheory]
     [MemberData(nameof(IsAsyncData))]
diff --git a/test/EFCore.SqlServer.FunctionalTests/Query/NorthwindFunctionsQuerySqlServerTest.cs b/test/EFCore.SqlServer.FunctionalTests/Query/NorthwindFunctionsQuerySqlServerTest.cs
index f38050e8a0e..ae4e0c9cbdd 100644
--- a/test/EFCore.SqlServer.FunctionalTests/Query/NorthwindFunctionsQuerySqlServerTest.cs
+++ b/test/EFCore.SqlServer.FunctionalTests/Query/NorthwindFunctionsQuerySqlServerTest.cs
@@ -1220,7 +1220,7 @@ public override async Task Where_math_log_new_base(bool async)
             """
 SELECT [o].[OrderID], [o].[ProductID], [o].[Discount], [o].[Quantity], [o].[UnitPrice]
 FROM [Order Details] AS [o]
-WHERE [o].[OrderID] = 11077 AND [o].[Discount] > CAST(0 AS real) AND LOG(CAST([o].[Discount] AS float), 7.0E0) < 0.0E0
+WHERE [o].[OrderID] = 11077 AND [o].[Discount] > CAST(0 AS real) AND LOG(CAST([o].[Discount] AS float), 7.0E0) < -1.0E0
 """);
     }
 
@@ -1598,7 +1598,7 @@ public override async Task Where_mathf_log_new_base(bool async)
             """
 SELECT [o].[OrderID], [o].[ProductID], [o].[Discount], [o].[Quantity], [o].[UnitPrice]
 FROM [Order Details] AS [o]
-WHERE [o].[OrderID] = 11077 AND [o].[Discount] > CAST(0 AS real) AND LOG([o].[Discount], CAST(7 AS real)) < CAST(0 AS real)
+WHERE [o].[OrderID] = 11077 AND [o].[Discount] > CAST(0 AS real) AND LOG([o].[Discount], CAST(7 AS real)) < CAST(-1 AS real)
 """);
     }
 
diff --git a/test/EFCore.Sqlite.FunctionalTests/Query/NorthwindFunctionsQuerySqliteTest.cs b/test/EFCore.Sqlite.FunctionalTests/Query/NorthwindFunctionsQuerySqliteTest.cs
index 826c4d1b27f..431a781be27 100644
--- a/test/EFCore.Sqlite.FunctionalTests/Query/NorthwindFunctionsQuerySqliteTest.cs
+++ b/test/EFCore.Sqlite.FunctionalTests/Query/NorthwindFunctionsQuerySqliteTest.cs
@@ -275,7 +275,7 @@ public override async Task Where_math_log_new_base(bool async)
             """
 SELECT "o"."OrderID", "o"."ProductID", "o"."Discount", "o"."Quantity", "o"."UnitPrice"
 FROM "Order Details" AS "o"
-WHERE "o"."OrderID" = 11077 AND "o"."Discount" > 0 AND log(7.0, CAST("o"."Discount" AS REAL)) < 0.0
+WHERE "o"."OrderID" = 11077 AND "o"."Discount" > 0 AND log(7.0, CAST("o"."Discount" AS REAL)) < -1.0
 """);
     }
 
@@ -572,7 +572,7 @@ public override async Task Where_mathf_log_new_base(bool async)
             """
 SELECT "o"."OrderID", "o"."ProductID", "o"."Discount", "o"."Quantity", "o"."UnitPrice"
 FROM "Order Details" AS "o"
-WHERE "o"."OrderID" = 11077 AND "o"."Discount" > 0 AND log(7, "o"."Discount") < 0
+WHERE "o"."OrderID" = 11077 AND "o"."Discount" > 0 AND log(7, "o"."Discount") < -1
 """);
     }