diff --git a/base/src/portbase.cpp b/base/src/portbase.cpp
index a43fe86..de91e7c 100644
--- a/base/src/portbase.cpp
+++ b/base/src/portbase.cpp
@@ -16,6 +16,7 @@
  * limitations under the License.
  */
 
+#include <errno.h>
 #include <stdlib.h>
 #include <string.h>