diff --git a/autoload/gitgutter/sign.vim b/autoload/gitgutter/sign.vim
index d170a42..e520c50 100644
--- a/autoload/gitgutter/sign.vim
+++ b/autoload/gitgutter/sign.vim
@@ -77,7 +77,7 @@ function! gitgutter#sign#find_current_signs()
     silent execute "sign place buffer=" . bufnr
   redir END
 
-  for sign_line in filter(split(signs, '\n'), 'v:val =~# "="')
+  for sign_line in filter(split(signs, '\n')[2:], 'v:val =~# "="')
     " Typical sign line:  line=88 id=1234 name=GitGutterLineAdded
     " We assume splitting is faster than a regexp.
     let components  = split(sign_line)
diff --git a/test/=fixture=.txt b/test/=fixture=.txt
new file mode 100644
index 0000000..e69de29
diff --git a/test/filenameWithEquals.expected b/test/filenameWithEquals.expected
new file mode 100644
index 0000000..a78b977
--- /dev/null
+++ b/test/filenameWithEquals.expected
@@ -0,0 +1,5 @@
+
+--- Signs ---
+Signs for =fixture=.txt:
+    line=1  id=3000  name=GitGutterLineAdded
+    line=2  id=3001  name=GitGutterLineAdded
diff --git a/test/testFilenameWithEquals.vim b/test/testFilenameWithEquals.vim
new file mode 100644
index 0000000..082ff02
--- /dev/null
+++ b/test/testFilenameWithEquals.vim
@@ -0,0 +1,12 @@
+source helper.vim
+
+edit =fixture=.txt
+normal ggo*
+try
+  write
+  write
+  call DumpSigns('filenameWithEquals')
+finally
+  call system('git reset HEAD =fixture=.txt')
+  call system('git checkout =fixture=.txt')
+endtry