diff --git a/pkg/apis/pipeline/v1alpha2/workspace_types.go b/pkg/apis/pipeline/v1alpha2/workspace_types.go
index a5082b98ed5..f9d85a7d55f 100644
--- a/pkg/apis/pipeline/v1alpha2/workspace_types.go
+++ b/pkg/apis/pipeline/v1alpha2/workspace_types.go
@@ -77,6 +77,11 @@ type WorkspaceBinding struct {
 type WorkspacePipelineDeclaration struct {
 	// Name is the name of a workspace to be provided by a PipelineRun.
 	Name string `json:"name"`
+	// Description is a human readable string describing how the workspace will be
+	// used in the Pipeline. It can be useful to include a bit of detail about which
+	// tasks are intended to have access to the data on the workspace.
+	// +optional
+	Description string `json:"description"`
 }
 
 // WorkspacePipelineTaskBinding describes how a workspace passed into the pipeline should be