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-rw-r--r--BaseTools/Source/Python/AutoGen/BuildEngine.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/BaseTools/Source/Python/AutoGen/BuildEngine.py b/BaseTools/Source/Python/AutoGen/BuildEngine.py
index 752a1a1f6a..45b39d7878 100644
--- a/BaseTools/Source/Python/AutoGen/BuildEngine.py
+++ b/BaseTools/Source/Python/AutoGen/BuildEngine.py
@@ -306,7 +306,7 @@ class BuildRule:
_SubSectionList = [_InputFile, _OutputFile, _Command]
_PATH_SEP = "(+)"
- _FileTypePattern = re.compile("^[_a-zA-Z][_\-0-9a-zA-Z]*$")
+ _FileTypePattern = re.compile(r"^[_a-zA-Z][_\-0-9a-zA-Z]*$")
_BinaryFileRule = FileBuildRule(TAB_DEFAULT_BINARY_FILE, [], [os.path.join("$(OUTPUT_DIR)", "${s_name}")],
["$(CP) ${src} ${dst}"], [])