--- a/tools/mach_commands.py
+++ b/tools/mach_commands.py
@@ -317,17 +317,17 @@ class FormatProvider(MachCommandBase):
         description='Run clang-format on current changes')
     @CommandArgument('--show', '-s', action = 'store_true',
         help = 'Show diff output on instead of applying changes')
     def clang_format(self, show=False):
         plat = platform.system()
         fmt = plat.lower() + "/clang-format-3.5"
         fmt_diff = "clang-format-diff-3.5"
 
-        # We are currently using a modified verion of clang-format hosted on people.mozilla.org.
+        # We are currently using a modified version of clang-format hosted on people.mozilla.org.
         # This is a temporary work around until we upstream the necessary changes and we can use
         # a system version of clang-format. See bug 961541.
         if plat == "Windows":
             fmt += ".exe"
         else:
             arch = os.uname()[4]
             if (plat != "Linux" and plat != "Darwin") or arch != 'x86_64':
                 print("Unsupported platform " + plat + "/" + arch +