diff --git a/2017/puzzle-08-01.cc b/2017/puzzle-08-01.cc
index 681cbca..b51a520 100644
--- a/2017/puzzle-08-01.cc
+++ b/2017/puzzle-08-01.cc
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <map>
 #include <regex>
 #include <string>
 
diff --git a/2017/puzzle-08-02.cc b/2017/puzzle-08-02.cc
index a9e07ca..e334347 100644
--- a/2017/puzzle-08-02.cc
+++ b/2017/puzzle-08-02.cc
@@ -1,5 +1,6 @@
 #include <iostream>
 #include <limits>
+#include <map>
 #include <regex>
 #include <string>
 
diff --git a/2017/puzzle-18-01.cc b/2017/puzzle-18-01.cc
index b8c8807..e6cbe36 100644
--- a/2017/puzzle-18-01.cc
+++ b/2017/puzzle-18-01.cc
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <map>
 #include <regex>
 #include <string>
 #include <variant>
diff --git a/2017/puzzle-18-02.cc b/2017/puzzle-18-02.cc
index 51a774a..7815ee5 100644
--- a/2017/puzzle-18-02.cc
+++ b/2017/puzzle-18-02.cc
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <map>
 #include <regex>
 #include <string>
 #include <variant>