diff --git a/gps/utils/LocTimer.cpp b/gps/utils/LocTimer.cpp
index 5b653eb2..5bcdd7b2 100644
--- a/gps/utils/LocTimer.cpp
+++ b/gps/utils/LocTimer.cpp
@@ -34,6 +34,7 @@
 #include <loc_timer.h>
 #include <sys/timerfd.h>
 #include <sys/epoll.h>
+#include <unistd.h>
 #include <LocTimer.h>
 #include <LocHeap.h>
 #include <LocThread.h>
diff --git a/gps/utils/loc_target.cpp b/gps/utils/loc_target.cpp
index cf429321..b7ba07ba 100644
--- a/gps/utils/loc_target.cpp
+++ b/gps/utils/loc_target.cpp
@@ -32,6 +32,7 @@
 #include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <cutils/properties.h>
diff --git a/gps/utils/platform_lib_abstractions/loc_pla/src/platform_lib_log_util.cpp b/gps/utils/platform_lib_abstractions/loc_pla/src/platform_lib_log_util.cpp
index 3cb51a30..1c5762be 100644
--- a/gps/utils/platform_lib_abstractions/loc_pla/src/platform_lib_log_util.cpp
+++ b/gps/utils/platform_lib_abstractions/loc_pla/src/platform_lib_log_util.cpp
@@ -25,6 +25,8 @@
  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+#include <cstdio>
+
 #include "platform_lib_log_util.h"
 #include "platform_lib_macros.h"