1 files changed, 1 insertions, 0 deletions
diff --git a/ec2n.h b/ec2n.h
index 826b2e43..f89fd7bd 100644
--- a/ec2n.h
+++ b/ec2n.h
@@ -11,6 +11,7 @@
 #include "cryptlib.h"
 #include "gf2n.h"
 #include "integer.h"
+#include "algebra.h"
 #include "eprecomp.h"
 #include "smartptr.h"
 #include "pubkey.h"