diff --git a/setter/src/amiga/CMakeLists.txt b/setter/src/amiga/CMakeLists.txt
index 95e98e1..96ccd9b 100644
--- a/setter/src/amiga/CMakeLists.txt
+++ b/setter/src/amiga/CMakeLists.txt
@@ -33,6 +33,7 @@ project(
         LANGUAGES C)
 
 add_definitions(-D__USE_INLINE__)
+add_definitions(-D__USE_BASETYPE__)
 
 set(PLATFORM_SOURCES attr.c deleted.c dirdepth.c filename.c files.c frag.c links.c os.c perms.c perms.h rsrcfork.c sparse.c time.c time.h volume.c xattr.c)