diff --git a/lib/SimpleSAML/Error/Assertion.php b/lib/SimpleSAML/Error/Assertion.php
index ef4fc0e56d185d606f1d7531a23a5552d7e4a1fe..67132d826dca6a3601714c872178d3c4b0719e4a 100644
--- a/lib/SimpleSAML/Error/Assertion.php
+++ b/lib/SimpleSAML/Error/Assertion.php
@@ -34,17 +34,6 @@ class SimpleSAML_Error_Assertion extends SimpleSAML_Error_Error {
 	}
 
 
-	/**
-	 * Retrieve backtrace from where the assert-function was called.
-	 *
-	 * @return array  Array with a backtrace. Each element is a string which identifies a position
-	 *                in the source.
-	 */
-	public function getAssertionBacktrace() {
-		return SimpleSAML_Utilities::buildBacktrace($this, 2);
-	}
-
-
 	/**
 	 * Retrieve the assertion which failed.
 	 *