diff --git a/generic/tclPort.h b/generic/tclPort.h
index 9485567..f329cde 100644
--- a/generic/tclPort.h
+++ b/generic/tclPort.h
@@ -20,7 +20,7 @@
 #if defined(_WIN32)
 #   include "tclWinPort.h"
 #else
-#   include "tclUnixPort.h"
+#   include "../unix/tclUnixPort.h"
 #endif
 #include "tcl.h"