diff --git a/eo/src/eo b/eo/src/eo
index 5f1a3f6b..38c61010 100644
--- a/eo/src/eo
+++ b/eo/src/eo
@@ -86,6 +86,7 @@
 #include <eoPop.h>
 #include <ga/eoBitOp.h>
 #include <es/eoRealOp.h>
+#include <es/eoNormalMutation.h>
 
 // Evaluation functions
 #include <eoEvalFunc.h>