diff --git a/flow/src/wFreestream.h b/flow/src/wFreestream.h
index 96a7871931d359a3f923054628dc1f4a6cc8e547..27befa77539d7b6c1697c9f9d8579d3e1c650c6c 100644
--- a/flow/src/wFreestream.h
+++ b/flow/src/wFreestream.h
@@ -19,7 +19,7 @@
 
 #include "flow.h"
 #include "wGroup.h"
-#include "wF1EL.h"
+#include "wF1El.h"
 
 namespace flow
 {