diff --git a/extern/Base64/Base64.h b/extern/Base64/Base64.h
index 498d2be128..4e9f517479 100644
--- a/extern/Base64/Base64.h
+++ b/extern/Base64/Base64.h
@@ -27,7 +27,7 @@
 
 #include <string>
 
-namespace macaron {
+namespace Base64 {
 
 class Base64 {
  public: