diff --git a/sound/pci/cs5530.c b/sound/pci/cs5530.c
index 207479a..bc07e27 100644
--- a/sound/pci/cs5530.c
+++ b/sound/pci/cs5530.c
@@ -39,6 +39,7 @@
 #include <linux/delay.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/sb.h>
 #include <sound/initval.h>