diff --git a/main.cpp b/main.cpp
index 5e2bfb4..034835c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,6 +4,8 @@
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
+#include <curl/curl.h>
+
 using namespace std;
 
 const size_t SCREEN_WIDTH = 80;
@@ -50,6 +52,8 @@ return in;
 int
 main()
 {
+    curl_global_init(CURL_GLOBAL_ALL);
+
     auto in = input_data(cin);
 
     auto bins = make_histogram(in.numbers, in.bin_count);