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-rwxr-xr-xtools/isolate/trace_inputs.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/isolate/trace_inputs.py b/tools/isolate/trace_inputs.py
index ca36e02..894afd6 100755
--- a/tools/isolate/trace_inputs.py
+++ b/tools/isolate/trace_inputs.py
@@ -208,8 +208,10 @@ if sys.platform == 'win32':
# Go figure why GetShortPathName() is needed.
path = GetLongPathName(GetShortPathName(path))
if path.startswith('\\\\?\\'):
- return path[4:]
- return path
+ path = path[4:]
+ # Always upper case the first letter since GetLongPathName() will return the
+ # drive letter in the case it was given.
+ return path[0].upper() + path[1:]
def CommandLineToArgvW(command_line):