diff --git a/rbutil/Makefile b/rbutil/Makefile
index 38233f1dbd..6fd248d753 100644
--- a/rbutil/Makefile
+++ b/rbutil/Makefile
@@ -12,7 +12,7 @@
 CXX=$(shell $(PREFIX)wx-config --version=2.8 --cxx)
 INC =
 CFLAGS = -Wall -Wundef -DRBUTIL -D_LARGEFILE64_SOURCE
-OBJS=rbutil.o rbutilApp.o rbutilFrm.o rbutilCtrls.o install_dialogs.o bootloaders.o installlog.o ipodpatcher/ipodpatcher.o ipodpatcher/ipodio-posix.o sansapatcher/sansapatcher.o sansapatcher/sansaio-posix.o irivertools.o md5sum.o
+OBJS=rbutil.o rbutilApp.o rbutilFrm.o rbutilCtrls.o install_dialogs.o bootloaders.o installlog.o ipodpatcher/ipodpatcher.o ipodpatcher/ipodio-posix.o sansapatcher/sansapatcher.o sansapatcher/sansaio-posix.o irivertools.o md5sum.o autodetection.o
 
 # Install into /usr/local by default
 ifndef DESTDIR
diff --git a/rbutil/Makefile.macosx b/rbutil/Makefile.macosx
index 94805666eb..384bc56311 100755
--- a/rbutil/Makefile.macosx
+++ b/rbutil/Makefile.macosx
@@ -52,7 +52,7 @@ RBUTIL_OBJECTS =  \
         rbutil.o rbutilApp.o rbutilFrm.o install_dialogs.o bootloaders.o installlog.o \
         rbutilCtrls.o ipodpatcher/ipodpatcher.o ipodpatcher/ipodio-posix.o \
         sansapatcher/sansapatcher.o sansapatcher/sansaio-posix.o \
-        md5sum.o irivertools.o \
+        md5sum.o irivertools.o autodetection.o \
 	$(__rbutil___win32rc)
 
 ### Conditionally set variables: ###