diff --git a/src/api/Api.cpp b/src/api/Api.cpp
index 20882133e..a455290a1 100644
--- a/src/api/Api.cpp
+++ b/src/api/Api.cpp
@@ -21,6 +21,8 @@
  *   along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
+
 
 #include "api/Api.h"
 #include "api/ApiState.h"
diff --git a/src/api/Httpd.cpp b/src/api/Httpd.cpp
index 6a61ac74b..cefb8192c 100644
--- a/src/api/Httpd.cpp
+++ b/src/api/Httpd.cpp
@@ -23,6 +23,7 @@
 
 
 #include <microhttpd.h>
+#include <string.h>
 
 
 #include "api/Api.h"
diff --git a/src/api/NetworkState.cpp b/src/api/NetworkState.cpp
index e3c76ec14..997f52dfc 100644
--- a/src/api/NetworkState.cpp
+++ b/src/api/NetworkState.cpp
@@ -23,6 +23,7 @@
 
 
 #include <algorithm>
+#include <string.h>
 #include <uv.h>