diff --git a/src/apps/common/ppm_writer.cpp b/src/apps/common/ppm_writer.cpp
index d6c8641d..2e9378aa 100644
--- a/src/apps/common/ppm_writer.cpp
+++ b/src/apps/common/ppm_writer.cpp
@@ -7,6 +7,7 @@
 
 #include "ppm_writer.h"
 
+#include <errno.h>
 #include <fstream>
 #include <iostream>