diff --git a/share/ruby-bisect/check_revision.sh b/share/ruby-bisect/check_revision.sh
index ecf7555..f9ae4f0 100755
--- a/share/ruby-bisect/check_revision.sh
+++ b/share/ruby-bisect/check_revision.sh
@@ -9,7 +9,7 @@ source "$RUBY_BISECT_DIR/util.sh"
 # Finds svn_id of last commit
 #
 function last_revision() {
-  git show -s --pretty=format:'%b' | grep -E -o "trunk@[0-9]+" | cut -d@ -f2
+  git show -s --pretty=format:'%h'
 }
 
 # Construct names
diff --git a/share/ruby-bisect/ruby-bisect.sh b/share/ruby-bisect/ruby-bisect.sh
index 9620479..5c6c407 100644
--- a/share/ruby-bisect/ruby-bisect.sh
+++ b/share/ruby-bisect/ruby-bisect.sh
@@ -29,13 +29,6 @@ function clone_ruby() {
   "$git_extras_dir/bin/git-force-clone" https://github.com/ruby/ruby "$ruby_dir"
 }
 
-#
-# Translates a commit's svn id to its git sha1 using git's log
-#
-function svn2git {
-  git_in_ruby_dir log --all --grep="trunk@$1" --pretty=format:'%h'
-}
-
 #
 # Prints usage information
 #
@@ -117,11 +110,11 @@ function parse_options() {
 }
 
 function parse_revisions() {
-  good_revision=$(svn2git "$good_svn_id")
+  good_revision=$(echo "$good_svn_id")
 
   if [[ -v bad_svn_id ]]
   then
-    bad_revision=$(svn2git "$bad_svn_id")
+    bad_revision=$(echo "$bad_svn_id")
   else
     bad_revision=$(git -C "$ruby_dir" show -s --pretty=format:'%h')
   fi