diff --git a/drivers/staging/unisys/include/commontypes.h b/drivers/staging/unisys/include/commontypes.h
index 8bfa76012bcc..4e89cdf8df95 100644
--- a/drivers/staging/unisys/include/commontypes.h
+++ b/drivers/staging/unisys/include/commontypes.h
@@ -30,7 +30,6 @@
 #include <syslog.h>
 #endif
 
-#define S32 int32_t
 #define S64 int64_t
 
 #ifdef __KERNEL__