diff --git a/src/namspace.c b/src/namspace.c
index 35be2fc..561fa44 100644
--- a/src/namspace.c
+++ b/src/namspace.c
@@ -51,7 +51,6 @@
 
 #define NW_PATH  /* */
 
-extern void mangle_dos_name(NW_VOL *vol, uint8 *unixname, uint8 *pp);
 static int ns06_fallback_obtain_info(int namespace, NW_HPATH *nwp,
                                      int destnamspace, int searchattrib,
                                      uint32 infomask, uint8 *responsedata);