diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc
index a8fced724..03bdb12a8 100644
--- a/apt-pkg/contrib/configuration.cc
+++ b/apt-pkg/contrib/configuration.cc
@@ -31,6 +31,7 @@
 #include <string.h>
 
 #include <algorithm>
+#include <array>
 #include <fstream>
 #include <iterator>
 #include <numeric>