diff --git a/main.cpp b/main.cpp
index 8cb87be..865c35c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,8 +4,10 @@
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
+#include <curl/curl.h>
 using namespace std;
 
+
 struct Input
 {
     vector<double> numbers;
@@ -29,6 +31,7 @@ Input input_data()
 
 int main()
 {
+    curl_global_init(CURL_GLOBAL_ALL);
     const size_t SCREEN_WIDTH = 80;
     const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
     auto in = input_data();