1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/isdirectory.c b/libbb/isdirectory.c
index 1d2477f47..28ed3ec29 100644
--- a/libbb/isdirectory.c
+++ b/libbb/isdirectory.c
@@ -15,7 +15,7 @@
  * Return TRUE if fileName is a directory.
  * Nonexistent files return FALSE.
  */
-int is_directory(const char *fileName, const int followLinks, struct stat *statBuf)
+int FAST_FUNC is_directory(const char *fileName, const int followLinks, struct stat *statBuf)
 {
         int status;
         struct stat astatBuf;