diff --git a/mfapi/file.c b/mfapi/file.c
index 2b6512b..96a6e36 100644
--- a/mfapi/file.c
+++ b/mfapi/file.c
@@ -157,7 +157,7 @@ int file_set_name(mffile * file, const char *name)
     if (name == NULL)
         return -1;
 
-    if (strlen(name) > 255)
+    if (strlen(name) > MFAPI_MAX_LEN_NAME)
         return -1;
 
     memset(file->name, 0, sizeof(file->name));
diff --git a/mfapi/folder.c b/mfapi/folder.c
index b79d8bc..146cb58 100644
--- a/mfapi/folder.c
+++ b/mfapi/folder.c
@@ -115,7 +115,7 @@ int folder_set_name(mffolder * folder, const char *name)
     if (name == NULL)
         return -1;
 
-    if (strlen(name) > 40)
+    if (strlen(name) > MFAPI_MAX_LEN_NAME)
         return -1;
 
     memset(folder->name, 0, sizeof(folder->name));