diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c
index 732263e4a437..5bd69206ba65 100644
--- a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c
@@ -22,6 +22,7 @@
 #include <sound/core.h>
 #include "pdaudiocf.h"
 #include <sound/initval.h>
+#include <asm/irq_regs.h>
 
 /*
  *