diff --git a/Makefile b/Makefile
index 65c553f..e116d2a 100644
--- a/Makefile
+++ b/Makefile
@@ -55,7 +55,7 @@ NDK_FOLDER_NAME_SFD  := NDK3.2/SFD
 NDK_FOLDER_NAME_LIBS := NDK3.2/lib
 else
 NDK_URL         := http://www.haage-partner.de/download/AmigaOS/NDK3.9.lha
-NDK_ARC_NAME    := NDK39
+NDK_ARC_NAME    := NDK3.9
 NDK_FOLDER_NAME := NDK_3.9/Include
 NDK_FOLDER_NAME_H    := NDK_3.9/Include/include_h
 NDK_FOLDER_NAME_I    := NDK_3.9/Include/include_i