diff --git a/components/language/core/browser/language_prefs.h b/components/language/core/browser/language_prefs.h
index 28c89546c..617d1ed91 100644
--- a/components/language/core/browser/language_prefs.h
+++ b/components/language/core/browser/language_prefs.h
@@ -7,6 +7,7 @@
 
 #include <set>
 #include <string>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/strings/string_piece.h"