diff --git a/src/eepp/ui/css/stylesheet.cpp b/src/eepp/ui/css/stylesheet.cpp
index a9b076422..81a818844 100644
--- a/src/eepp/ui/css/stylesheet.cpp
+++ b/src/eepp/ui/css/stylesheet.cpp
@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <array>
 #include <eepp/ui/css/stylesheet.hpp>
 #include <eepp/ui/css/stylesheetproperty.hpp>
 #include <eepp/ui/css/stylesheetselector.hpp>