diff --git a/examples/jsm/tsl/display/SSRNode.js b/examples/jsm/tsl/display/SSRNode.js
index 9d4218385fa882..b7696ea5893915 100644
--- a/examples/jsm/tsl/display/SSRNode.js
+++ b/examples/jsm/tsl/display/SSRNode.js
@@ -206,7 +206,7 @@ class SSRNode extends TempNode {
 		 * @private
 		 * @type {UniformNode<bool>}
 		 */
-		this._isPerspectiveCamera = uniform( camera.isPerspectiveCamera );
+		this._isPerspectiveCamera = uniform( camera.isPerspectiveCamera === true );
 
 		/**
 		 * The resolution of the pass.