diff --git a/jsonapi-generator/src/jsonapi-generator.cpp b/jsonapi-generator/src/jsonapi-generator.cpp
index 661ae526e..21f2a1b93 100644
--- a/jsonapi-generator/src/jsonapi-generator.cpp
+++ b/jsonapi-generator/src/jsonapi-generator.cpp
@@ -24,6 +24,7 @@
 #include <iterator>
 #include <functional>
 #include <QVariant>
+#include <cerrno>
 
 struct MethodParam
 {