diff --git a/cinelerra-5.1/cinelerra/exportedl.C b/cinelerra-5.1/cinelerra/exportedl.C
index cac86bcf..776690bd 100644
--- a/cinelerra-5.1/cinelerra/exportedl.C
+++ b/cinelerra-5.1/cinelerra/exportedl.C
@@ -40,6 +40,7 @@
 #include "tracks.h"
 #include "transition.h"
 
+#include <libgen.h>
 #include <ctype.h>
 #include <string.h>