diff --git a/Makefile b/Makefile
index d35fd21..7a3d31a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
 .PHONY: main
 
 main:
-	g++ main.cpp -g -lcurl -o main
+	g++ main.cpp -g -std=c++17 -lcurl -o main
diff --git a/main.cpp b/main.cpp
index d12c675..24692b9 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,6 @@
 #include <iostream>
 #include <fstream>
+#include <sstream>
 #include <set>
 #include <sys/stat.h>
 #include <curl/curl.h>