1 files changed, 2 insertions, 2 deletions
diff --git a/StdLib/LibC/Time/itimer.c b/StdLib/LibC/Time/itimer.c
index d6f6ab44c0..00712b8247 100644
--- a/StdLib/LibC/Time/itimer.c
+++ b/StdLib/LibC/Time/itimer.c
@@ -11,12 +11,12 @@
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 **/
 #include <LibConfig.h>
-#include <sys/EfiSysCall.h>
 #include <sys/time.h>
 #include <time.h>
 #include <errno.h>
 #include <sys/signal.h>
 #include <signal.h>
+#include  <unistd.h>
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/UefiLib.h>
@@ -274,4 +274,4 @@ int getitimer(
   }
 
   return 0;
-}
-\ No newline at end of file
+}