diff --git a/src/sentry/utils/sdk_crashes/sdk_crash_detector.py b/src/sentry/utils/sdk_crashes/sdk_crash_detector.py
index e555a9179841ad..b64ae0d4a865b7 100644
--- a/src/sentry/utils/sdk_crashes/sdk_crash_detector.py
+++ b/src/sentry/utils/sdk_crashes/sdk_crash_detector.py
@@ -75,6 +75,8 @@ def is_sdk_crash(self, frames: Sequence[Mapping[str, Any]]) -> bool:
         # Cocoa SDK frames can be marked as in_app. Therefore, the algorithm only checks if frames
         # are SDK frames or from system libraries.
         for frame in reversed(frames):
+            if frame is None:
+                continue
             function = frame.get("function")
             if function:
                 for matcher in self.config.sdk_crash_ignore_functions_matchers: