diff --git a/rust/ql/lib/codeql/rust/frameworks/stdlib/core.model.yml b/rust/ql/lib/codeql/rust/frameworks/stdlib/core.model.yml
index afcc3c42c8d4..aa35c1222cd8 100644
--- a/rust/ql/lib/codeql/rust/frameworks/stdlib/core.model.yml
+++ b/rust/ql/lib/codeql/rust/frameworks/stdlib/core.model.yml
@@ -152,4 +152,5 @@ extensions:
       extensible: excludeFieldTaintStep
     data:
       - ["core::ops::range::RangeInclusive::start"]
-      - ["core::ops::range::RangeInclusive::end"]
\ No newline at end of file
+      - ["core::ops::range::RangeInclusive::end"]
+      - ["core::result::Result::Err(0)"]
\ No newline at end of file