diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.h b/drivers/staging/comedi/drivers/addi-data/addi_common.h
index bf04602d8381..a3c62bc1f8b5 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.h
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.h
@@ -37,7 +37,6 @@
 #define SUCCESS	1
 
 /* variable type definition */
-typedef int LONG, *PLONG;		/* 32-bit */
 typedef unsigned int ULONG, *PULONG;	/* 32-bit */
 typedef unsigned int DWORD, *PDWORD;	/* 32-bit */
 typedef unsigned long ULONG_PTR;