diff --git a/libblkid/lib/exec_shell.c b/libblkid/lib/exec_shell.c
index 2b26364..2b723ac 100644
--- a/libblkid/lib/exec_shell.c
+++ b/libblkid/lib/exec_shell.c
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <sys/types.h>
+#include <libgen.h>
 
 #include "nls.h"
 #include "c.h"