1 files changed, 1 insertions, 0 deletions

diff --git a/ida.cpp b/ida.cpp
index c0655b40..92e24991 100644
--- a/ida.cpp
+++ b/ida.cpp
@@ -6,6 +6,7 @@
 #include "algebra.h"
 #include "gf2_32.h"
 #include "polynomi.h"
+#include <functional>
 
 #include "polynomi.cpp"