1 files changed, 1 insertions, 1 deletions
diff --git a/file.c b/file.c
index 46cf319ff7..63a6ebe61f 100644
--- a/file.c
+++ b/file.c
@@ -3436,7 +3436,7 @@ ruby_find_basename(const char *name, long *len, long *ext)
 #if defined DOSISH_DRIVE_LETTER || defined DOSISH_UNC
     const char *root;
 #endif
-    long f, n = -1;
+    long f = 0, n = -1;
 
     name = skipprefix(name);
 #if defined DOSISH_DRIVE_LETTER || defined DOSISH_UNC