diff --git a/pkg/apis/pipeline/v1beta1/result_conversion.go b/pkg/apis/pipeline/v1beta1/result_conversion.go
index 5e0facad2ac..c695de103c4 100644
--- a/pkg/apis/pipeline/v1beta1/result_conversion.go
+++ b/pkg/apis/pipeline/v1beta1/result_conversion.go
@@ -26,20 +26,24 @@ func (r TaskResult) convertTo(ctx context.Context, sink *v1.TaskResult) {
 	sink.Name = r.Name
 	sink.Type = v1.ResultsType(r.Type)
 	sink.Description = r.Description
-	properties := make(map[string]v1.PropertySpec)
-	for k, v := range r.Properties {
-		properties[k] = v1.PropertySpec{Type: v1.ParamType(v.Type)}
+	if r.Properties != nil {
+		properties := make(map[string]v1.PropertySpec)
+		for k, v := range r.Properties {
+			properties[k] = v1.PropertySpec{Type: v1.ParamType(v.Type)}
+		}
+		sink.Properties = properties
 	}
-	sink.Properties = properties
 }
 
 func (r *TaskResult) convertFrom(ctx context.Context, source v1.TaskResult) {
 	r.Name = source.Name
 	r.Type = ResultsType(source.Type)
 	r.Description = source.Description
-	properties := make(map[string]PropertySpec)
-	for k, v := range source.Properties {
-		properties[k] = PropertySpec{Type: ParamType(v.Type)}
+	if source.Properties != nil {
+		properties := make(map[string]PropertySpec)
+		for k, v := range source.Properties {
+			properties[k] = PropertySpec{Type: ParamType(v.Type)}
+		}
+		r.Properties = properties
 	}
-	r.Properties = properties
 }
diff --git a/pkg/apis/pipeline/v1beta1/task_conversion_test.go b/pkg/apis/pipeline/v1beta1/task_conversion_test.go
index 8913e4e105c..3d09a59d3fc 100644
--- a/pkg/apis/pipeline/v1beta1/task_conversion_test.go
+++ b/pkg/apis/pipeline/v1beta1/task_conversion_test.go
@@ -66,6 +66,11 @@ func TestTaskConversion(t *testing.T) {
 					Type:        v1beta1.ParamTypeString,
 					Description: "My first param",
 				}},
+				Results: []v1beta1.TaskResult{{
+					Name:        "result-1",
+					Type:        v1beta1.ResultsTypeString,
+					Description: "a result",
+				}},
 			},
 		},
 	}, {