diff --git a/trunk/paradiseo-mo/src/mo.h b/trunk/paradiseo-mo/src/mo.h
index 55684c28b..7e905b613 100755
--- a/trunk/paradiseo-mo/src/mo.h
+++ b/trunk/paradiseo-mo/src/mo.h
@@ -179,6 +179,8 @@
 #include <problems/permutation/moShiftNeighbor.h>
 #include <problems/permutation/moSwapNeighbor.h>
 #include <problems/permutation/moSwapNeighborhood.h>
+#include <problems/permutation/moIndexedSwapNeighbor.h>
+
 
 
 #include <sampling/moAutocorrelationSampling.h>