diff --git a/JsonSchema.Generation/Attributes/IfMaxAttribute.cs b/JsonSchema.Generation/Attributes/IfMaxAttribute.cs
index 71689fef92..6ff1a782e7 100644
--- a/JsonSchema.Generation/Attributes/IfMaxAttribute.cs
+++ b/JsonSchema.Generation/Attributes/IfMaxAttribute.cs
@@ -52,7 +52,7 @@ public IfMaxAttribute(string propertyName, double value, object? group)
 	{
 		if (PropertyType == null) return null;
 
-		if (!PropertyType.IsNumber() && !PropertyType.IsNullableNumber())
+		if (PropertyType.IsNumber() || PropertyType.IsNullableNumber())
 		{
 			if (IsExclusive) return new ExclusiveMaximumIntent(Value.ClampToDecimal());
 			return new MaximumIntent(Value.ClampToDecimal());
diff --git a/JsonSchema.Generation/Attributes/IfMinAttribute.cs b/JsonSchema.Generation/Attributes/IfMinAttribute.cs
index 359bd7d472..5a45eea3d2 100644
--- a/JsonSchema.Generation/Attributes/IfMinAttribute.cs
+++ b/JsonSchema.Generation/Attributes/IfMinAttribute.cs
@@ -52,7 +52,7 @@ public IfMinAttribute(string propertyName, double value, object? group)
 	{
 		if (PropertyType == null) return null;
 
-		if (!PropertyType.IsNumber() && !PropertyType.IsNullableNumber())
+		if (PropertyType.IsNumber() || PropertyType.IsNullableNumber())
 		{
 			if (IsExclusive) return new ExclusiveMinimumIntent(Value.ClampToDecimal());
 			return new MinimumIntent(Value.ClampToDecimal());
diff --git a/JsonSchema.Tests/SerializationTests.cs b/JsonSchema.Tests/SerializationTests.cs
index 8b6c157da0..c0da637a2f 100644
--- a/JsonSchema.Tests/SerializationTests.cs
+++ b/JsonSchema.Tests/SerializationTests.cs
@@ -25,8 +25,8 @@ public class SerializationTests
 	[TestCase("{\"additionalProperties\":true}")]
 	[TestCase("{\"additionalProperties\":false}")]
 	[TestCase("{\"additionalProperties\":{\"$id\":\"http://some.site/schema\"}}")]
-	[TestCase("{\"allOf\":[]}")]
-	[TestCase("{\"anyOf\":[]}")]
+	[TestCase("{\"allOf\":[{\"$id\":\"http://some.site/schema\"}]}")]
+	[TestCase("{\"anyOf\":[{\"$id\":\"http://some.site/schema\"}]}")]
 	[TestCase("{\"const\":\"some text\"}")]
 	[TestCase("{\"const\":9}")]
 	[TestCase("{\"const\":9.0}")]
@@ -74,7 +74,7 @@ public class SerializationTests
 	[TestCase("{\"minProperties\":1}")]
 	[TestCase("{\"multipleOf\":1}")]
 	[TestCase("{\"not\":{\"$id\":\"http://some.site/schema\"}}")]
-	[TestCase("{\"oneOf\":[]}")]
+	[TestCase("{\"oneOf\":[{\"$id\":\"http://some.site/schema\"}]}")]
 	[TestCase("{\"pattern\":\"^yes{1,3}$\"}")]
 	[TestCase("{\"patternProperties\":{\"foo\":{}}}")]
 	[TestCase("{\"prefixItems\":[{\"$id\":\"http://some.site/schema\"}]}")]