diff --git a/site/src/api/api.ts b/site/src/api/api.ts
index d95d644ef7678..f1ccef1faf1e3 100644
--- a/site/src/api/api.ts
+++ b/site/src/api/api.ts
@@ -2702,14 +2702,18 @@ class ExperimentalApiMethods {
 			queryExpressions.push(`owner:${filter.username}`);
 		}
 
-		const workspaces = await API.getWorkspaces({
+		const res = await API.getWorkspaces({
 			q: queryExpressions.join(" "),
 		});
+		// Exclude prebuild workspaces as they are not user-facing.
+		const workspaces = res.workspaces.filter(
+			(workspace) => !workspace.is_prebuild,
+		);
 		const prompts = await API.experimental.getAITasksPrompts(
-			workspaces.workspaces.map((workspace) => workspace.latest_build.id),
+			workspaces.map((workspace) => workspace.latest_build.id),
 		);
 
-		return workspaces.workspaces.map((workspace) => ({
+		return workspaces.map((workspace) => ({
 			workspace,
 			prompt: prompts.prompts[workspace.latest_build.id],
 		}));