1 files changed, 1 insertions, 1 deletions
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index 509935a147..4002b75a5c 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -2287,7 +2287,7 @@ gzfile_s_open(int argc, VALUE *argv, VALUE klass, const char *mode)
 	rb_raise(rb_eArgError, "wrong number of arguments (0 for 1)");
     }
     filename = argv[0];
-    SafeStringValue(filename);
+    FilePathValue(filename);
     io = rb_file_open(RSTRING_PTR(filename), mode);
 
     argv[0] = io;