diff --git a/desktop_env/evaluators/metrics/slides.py b/desktop_env/evaluators/metrics/slides.py
index 4fa0cb2..5d85a31 100644
--- a/desktop_env/evaluators/metrics/slides.py
+++ b/desktop_env/evaluators/metrics/slides.py
@@ -190,8 +190,7 @@ def compare_pptx_files(file1_path, file2_path, **options):
                         if run1.font.underline != run2.font.underline and examine_font_underline:
                             return 0
 
-                        if ('strike' in run1.font._element.attrib) != (
-                                'strike' in run2.font._element.attrib) and examine_strike_through:
+                        if run1.font._element.attrib.get('strike', 'noStrike') != run2.font._element.attrib.get('strike', 'noStrike') and examine_strike_through:
                             return 0
 
                         # fixme: Actually there are more properties to be compared, but we cannot get them through pptx
@@ -373,4 +372,5 @@ def check_page_number_colors(pptx_file, rules):
     return 1
 
 if __name__ == '__main__':
-    print(evaluate_presentation_fill_to_rgb_distance(r"C:\Users\tianbaox\Desktop\DesktopEnv\cache\3b27600c-3668-4abd-8f84-7bcdebbccbdb\lec17-gui-events.pptx", {"rgb": (0, 0, 255)}))
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+    print(compare_pptx_files(r"C:\Users\tianbaox\Desktop\DesktopEnv\cache\550ce7e7-747b-495f-b122-acdc4d0b8e54\New_Club_Spring_2018_Training_Gold.pptx", r"C:\Users\tianbaox\Desktop\DesktopEnv\cache\550ce7e7-747b-495f-b122-acdc4d0b8e54\New_Club_Spring_2018_Training_Gold.pptx"))
+    # print(evaluate_presentation_fill_to_rgb_distance(r"C:\Users\tianbaox\Desktop\DesktopEnv\cache\3b27600c-3668-4abd-8f84-7bcdebbccbdb\lec17-gui-events.pptx", {"rgb": (0, 0, 255)}))
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