diff --git a/stim/image/image.h b/stim/image/image.h
index 71150ae..38278b8 100644
--- a/stim/image/image.h
+++ b/stim/image/image.h
@@ -5,6 +5,7 @@
 #endif
 #include "CImg.h"
 
+#include <vector>
 #include <iostream>
 namespace stim{
 //This static class provides the STIM interface for loading images
--
libgit2 0.21.4