diff --git a/sys/alpha/alpha/dec_1000a.c b/sys/alpha/alpha/dec_1000a.c
index 65e91fbc4f4a..6cd456b26e53 100644
--- a/sys/alpha/alpha/dec_1000a.c
+++ b/sys/alpha/alpha/dec_1000a.c
@@ -393,5 +393,5 @@ dec_1000a_intr_init()
 /*
  * Enable cascade interrupt.
  */
-	dec_1000_intr_enable(2);
+	dec_1000a_intr_enable(2);
 }