diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index a34ad16..dacf9c2 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -201,7 +201,7 @@ endfunction
 let s:git_versions = {}
 function! fugitive#GitVersion(...) abort
   if !has_key(s:git_versions, g:fugitive_git_executable)
-    let s:git_versions[g:fugitive_git_executable] = matchstr(system(g:fugitive_git_executable.' --version'), '\d\S\+')
+    let s:git_versions[g:fugitive_git_executable] = matchstr(system(g:fugitive_git_executable.' --version'), '\d[^[:space:]]\+')
   endif
   if !a:0
     return s:git_versions[g:fugitive_git_executable]