diff --git a/arch/arm/bits/alltypes.h.sh b/arch/arm/bits/alltypes.h.sh
index a531ee0f480be4bff07eeca4592d457a00b8beab..abe782d994cb86ac9e4e12b4f83ee75385113304 100755
--- a/arch/arm/bits/alltypes.h.sh
+++ b/arch/arm/bits/alltypes.h.sh
@@ -61,6 +61,7 @@ TYPEDEF double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF int suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; int tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/arch/i386/bits/alltypes.h.sh b/arch/i386/bits/alltypes.h.sh
index 13def835b6c04ec45cc11e17899b9280276dc171..579aa1afe0fe3d3f5d80620c032cf61844ab5a57 100755
--- a/arch/i386/bits/alltypes.h.sh
+++ b/arch/i386/bits/alltypes.h.sh
@@ -74,6 +74,7 @@ TYPEDEF long double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF int suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; int tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/arch/microblaze/bits/alltypes.h.sh b/arch/microblaze/bits/alltypes.h.sh
index 2397c6cdc95dc1c612b8b30b4181960aa5513e36..6ddd0823c5b046d1c7c31cbbc35a7582b24fee60 100755
--- a/arch/microblaze/bits/alltypes.h.sh
+++ b/arch/microblaze/bits/alltypes.h.sh
@@ -61,6 +61,7 @@ TYPEDEF double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF int suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; int tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/arch/mips/bits/alltypes.h.sh b/arch/mips/bits/alltypes.h.sh
index 2397c6cdc95dc1c612b8b30b4181960aa5513e36..6ddd0823c5b046d1c7c31cbbc35a7582b24fee60 100755
--- a/arch/mips/bits/alltypes.h.sh
+++ b/arch/mips/bits/alltypes.h.sh
@@ -61,6 +61,7 @@ TYPEDEF double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF int suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; int tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/arch/powerpc/bits/alltypes.h.sh b/arch/powerpc/bits/alltypes.h.sh
index f3dac12a69574c36d601eebfb3dc7cad213abfd7..417e291900a6fbe02bdeb2822b382ae26841a3f6 100755
--- a/arch/powerpc/bits/alltypes.h.sh
+++ b/arch/powerpc/bits/alltypes.h.sh
@@ -61,6 +61,7 @@ TYPEDEF double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF int suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; int tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/arch/x86_64/bits/alltypes.h.sh b/arch/x86_64/bits/alltypes.h.sh
index bc9a3cc0139c809f8e24165ffd846cbd436eaa03..62e77ac98d856e6ce6a2a7e09b3e5a8d8cf2cdd5 100755
--- a/arch/x86_64/bits/alltypes.h.sh
+++ b/arch/x86_64/bits/alltypes.h.sh
@@ -60,6 +60,7 @@ TYPEDEF double double_t;
 
 TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
+TYPEDEF unsigned useconds_t;
 STRUCT timeval { time_t tv_sec; long tv_usec; };
 STRUCT timespec { time_t tv_sec; long tv_nsec; };
 
diff --git a/include/sys/types.h b/include/sys/types.h
index 7378b60bcbbd4ddd9ecb152a396b396ccc44bd7e..6ead8b6e4f695f7df708cb7504674794aefe6777 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -52,6 +52,7 @@ extern "C" {
 #define __NEED_pthread_spinlock_t
 #define __NEED_pthread_key_t
 #define __NEED_pthread_once_t
+#define __NEED_useconds_t
 
 #include <bits/alltypes.h>
 
diff --git a/include/unistd.h b/include/unistd.h
index 07e49e97e23dac1c5fa179881ea3352602d0ca70..b9dc06d52e3d1cf62049a9e04479b0807c4a475e 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -24,6 +24,7 @@ extern "C" {
 #define __NEED_off_t
 #define __NEED_pid_t
 #define __NEED_intptr_t
+#define __NEED_useconds_t
 
 #include <bits/alltypes.h>