diff --git a/utils/mkpatch b/utils/mkpatch
index 415fa7870ea..afdd5fe28c6 100755
--- a/utils/mkpatch
+++ b/utils/mkpatch
@@ -18,9 +18,9 @@ if [ "$#" -ne 1 ] ; then
 fi
 NAME="$1"
 echo "mkpatch: Generating differences on top level files"
-cvs diff -l -Ntdup -5 . > "$NAME".patch.raw 2>&1
+svn diff -N -x -u -N * > "$NAME".patch.raw 2>&1
 echo "mkpatch: Generating differences on all directories"
-cvs diff -Ntdup -5 >> "$NAME".patch.raw 2>&1 \
+svn diff -x -u  >> "$NAME".patch.raw 2>&1 \
   autoconf docs utils include lib/System lib/Support lib/VMCore lib/AsmParser \
   lib/Bytecode lib/Analysis lib/Transforms lib/CodeGen lib/Target \
   lib/ExecutionEngine lib/Debugger lib/Linker \