diff --git a/libgralloc1/gralloc_priv.h b/libgralloc1/gralloc_priv.h
index 7553017..0a2314b 100644
--- a/libgralloc1/gralloc_priv.h
+++ b/libgralloc1/gralloc_priv.h
@@ -20,6 +20,7 @@
 #ifndef __GRALLOC_PRIV_H__
 #define __GRALLOC_PRIV_H__
 
+#include <errno.h>
 #include <unistd.h>
 #include "gr_priv_handle.h"
 
diff --git a/sdm/libs/hwc2/hwc_buffer_sync_handler.cpp b/sdm/libs/hwc2/hwc_buffer_sync_handler.cpp
index 784e91b..f2dacb2 100644
--- a/sdm/libs/hwc2/hwc_buffer_sync_handler.cpp
+++ b/sdm/libs/hwc2/hwc_buffer_sync_handler.cpp
@@ -27,6 +27,7 @@
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#include <errno.h>
 #include <sync/sync.h>
 #include <utils/constants.h>
 #include <utils/debug.h>