diff --git a/includes/libraries/action-scheduler/classes/ActionScheduler_wpPostStore.php b/includes/libraries/action-scheduler/classes/ActionScheduler_wpPostStore.php
index 5485c100cc0..59ee651522e 100644
--- a/includes/libraries/action-scheduler/classes/ActionScheduler_wpPostStore.php
+++ b/includes/libraries/action-scheduler/classes/ActionScheduler_wpPostStore.php
@@ -132,11 +132,7 @@ class ActionScheduler_wpPostStore extends ActionScheduler_Store {
 	protected function make_action_from_post( $post ) {
 		$hook = $post->post_title;
 		$args = json_decode( $post->post_content, true );
-
-		// Handle args that do not decode properly.
-		if ( JSON_ERROR_NONE !== json_last_error() || ! is_array( $args ) ) {
-			throw ActionScheduler_InvalidActionException::from_decoding_args( $post->ID );
-		}
+		$this->validate_args( $args, $post->ID );
 
 		$schedule = get_post_meta( $post->ID, self::SCHEDULE_META_KEY, true );
 		if ( empty( $schedule ) || ! is_a( $schedule, 'ActionScheduler_Schedule' ) ) {
@@ -788,4 +784,24 @@ class ActionScheduler_wpPostStore extends ActionScheduler_Store {
 		$taxonomy_registrar = new ActionScheduler_wpPostStore_TaxonomyRegistrar();
 		$taxonomy_registrar->register();
 	}
+
+	/**
+	 * Validate that we could decode action arguments.
+	 *
+	 * @param mixed $args      The decoded arguments.
+	 * @param int   $action_id The action ID.
+	 *
+	 * @throws ActionScheduler_InvalidActionException When the decoded arguments are invalid.
+	 */
+	private function validate_args( $args, $action_id ) {
+		// Ensure we have an array of args.
+		if ( ! is_array( $args ) ) {
+			throw ActionScheduler_InvalidActionException::from_decoding_args( $action_id );
+		}
+
+		// Validate JSON decoding if possible.
+		if ( function_exists( 'json_last_error' ) && JSON_ERROR_NONE !== json_last_error() ) {
+			throw ActionScheduler_InvalidActionException::from_decoding_args( $action_id );
+		}
+	}
 }