diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.h b/drivers/staging/comedi/drivers/addi-data/addi_common.h
index afe41263c749..f94bd9da43cd 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 short SHORT, *PSHORT;
 typedef unsigned short USHORT, *PUSHORT;
 typedef unsigned short WORD, *PWORD;
 typedef int INT, *PINT;;