diff --git a/eo/src/eoProportionalSelect.h b/eo/src/eoProportionalSelect.h
index 1aa74a35b..3fd49aded 100644
--- a/eo/src/eoProportionalSelect.h
+++ b/eo/src/eoProportionalSelect.h
@@ -34,6 +34,7 @@
 
 #include "utils/eoRNG.h"
 #include "utils/selectors.h"
+#include "utils/eoLogger.h"
 #include "eoSelectOne.h"
 #include "eoPop.h"