diff --git a/resources/test/fixtures/N818.py b/resources/test/fixtures/N818.py
index 0b1f4b54cf..f993759d24 100644
--- a/resources/test/fixtures/N818.py
+++ b/resources/test/fixtures/N818.py
@@ -10,5 +10,9 @@ class C(Exception):
     pass
 
 
-class D(AnotherError):
+class D(BaseException):
+    pass
+
+
+class E(AnotherError):
     pass
diff --git a/src/pep8_naming/checks.rs b/src/pep8_naming/checks.rs
index 9cbf01880f..b85055c20d 100644
--- a/src/pep8_naming/checks.rs
+++ b/src/pep8_naming/checks.rs
@@ -224,7 +224,7 @@ pub fn error_suffix_on_exception_name(
 ) -> Option<Check> {
     if bases.iter().any(|base| {
         if let ExprKind::Name { id, .. } = &base.node {
-            id.ends_with("Exception") || id.ends_with("Error")
+            id == "Exception" || id.ends_with("Error")
         } else {
             false
         }
diff --git a/src/snapshots/ruff__linter__tests__N818_N818.py.snap b/src/snapshots/ruff__linter__tests__N818_N818.py.snap
index a705736500..3eadb42f47 100644
--- a/src/snapshots/ruff__linter__tests__N818_N818.py.snap
+++ b/src/snapshots/ruff__linter__tests__N818_N818.py.snap
@@ -12,12 +12,12 @@ expression: checks
     column: 0
   fix: ~
 - kind:
-    ErrorSuffixOnExceptionName: D
+    ErrorSuffixOnExceptionName: E
   location:
-    row: 13
+    row: 17
     column: 0
   end_location:
-    row: 15
+    row: 19
     column: 0
   fix: ~