diff --git a/src/fish_key_reader.cpp b/src/fish_key_reader.cpp
index d36865ef7..d6ca59c74 100644
--- a/src/fish_key_reader.cpp
+++ b/src/fish_key_reader.cpp
@@ -8,6 +8,9 @@
 // Type "exit" or "quit" to terminate the program.
 #include "config.h"  // IWYU pragma: keep
 
+#include <memory>
+#include <string>
+#include <vector>
 #include <errno.h>
 #include <getopt.h>
 #include <signal.h>