diff --git a/sys/amd64/include/_types.h b/sys/amd64/include/_types.h
index 13dc3ea28a7..99db9b05f0b 100644
--- a/sys/amd64/include/_types.h
+++ b/sys/amd64/include/_types.h
@@ -48,7 +48,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/arm/include/_types.h b/sys/arm/include/_types.h
index d8386f3225d..6e912708e2b 100644
--- a/sys/arm/include/_types.h
+++ b/sys/arm/include/_types.h
@@ -46,7 +46,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/i386/include/_types.h b/sys/i386/include/_types.h
index 3194fd691f6..9f5ab907c87 100644
--- a/sys/i386/include/_types.h
+++ b/sys/i386/include/_types.h
@@ -48,7 +48,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/ia64/include/_types.h b/sys/ia64/include/_types.h
index 0c2f5cc38d0..66ac0ccb6c4 100644
--- a/sys/ia64/include/_types.h
+++ b/sys/ia64/include/_types.h
@@ -46,7 +46,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/mips/include/_types.h b/sys/mips/include/_types.h
index 2f23db6d9b3..8f09f63f393 100644
--- a/sys/mips/include/_types.h
+++ b/sys/mips/include/_types.h
@@ -47,7 +47,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/ofed/include/asm/types.h b/sys/ofed/include/asm/types.h
index 70dd2be93a4..5745727b63e 100644
--- a/sys/ofed/include/asm/types.h
+++ b/sys/ofed/include/asm/types.h
@@ -30,17 +30,17 @@
 
 typedef unsigned short umode_t;
 
-typedef __signed__ char __s8;
+typedef signed char __s8;
 typedef unsigned char __u8;
 
-typedef __signed__ short __s16;
+typedef signed short __s16;
 typedef unsigned short __u16;
 
-typedef __signed__ int __s32;
+typedef signed int __s32;
 typedef unsigned int __u32;
 
 #if defined(__GNUC__) // && !defined(__STRICT_ANSI__)
-typedef __signed__ long long __s64;
+typedef signed long long __s64;
 typedef unsigned long long __u64;
 #endif
 
diff --git a/sys/powerpc/include/_types.h b/sys/powerpc/include/_types.h
index b0b582e7080..331c9a2cfc5 100644
--- a/sys/powerpc/include/_types.h
+++ b/sys/powerpc/include/_types.h
@@ -46,7 +46,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;
diff --git a/sys/sparc64/include/_types.h b/sys/sparc64/include/_types.h
index 7e993c4c370..5899401ff29 100644
--- a/sys/sparc64/include/_types.h
+++ b/sys/sparc64/include/_types.h
@@ -42,7 +42,7 @@
 /*
  * Basic types upon which most other types are built.
  */
-typedef	__signed char		__int8_t;
+typedef	signed char		__int8_t;
 typedef	unsigned char		__uint8_t;
 typedef	short			__int16_t;
 typedef	unsigned short		__uint16_t;