diff --git a/pkg/apis/pipeline/v1/pipeline_validation.go b/pkg/apis/pipeline/v1/pipeline_validation.go
index 43e56d102f5..04806efb580 100644
--- a/pkg/apis/pipeline/v1/pipeline_validation.go
+++ b/pkg/apis/pipeline/v1/pipeline_validation.go
@@ -791,6 +791,9 @@ func validateMatrix(ctx context.Context, tasks []PipelineTask) (errs *apis.Field
 // since consuming a singular result produced by a matrix is currently not supported
 func findAndValidateResultRefsForMatrix(tasks []PipelineTask, taskMapping map[string]PipelineTask) (resultRefs []*ResultRef, errs *apis.FieldError) {
 	for _, t := range tasks {
+		if !t.IsMatrixed() {
+			continue
+		}
 		for _, p := range t.Params {
 			if expressions, ok := p.GetVarSubstitutionExpressions(); ok {
 				if LooksLikeContainsResultRefs(expressions) {