diff --git a/src/Fallout.SourceGenerators/TransitionShimGenerator.cs b/src/Fallout.SourceGenerators/TransitionShimGenerator.cs
index ee277d6d9..a2eab8a93 100644
--- a/src/Fallout.SourceGenerators/TransitionShimGenerator.cs
+++ b/src/Fallout.SourceGenerators/TransitionShimGenerator.cs
@@ -670,8 +670,8 @@ namespace Fallout.Migrate.Shims;
///
/// Marks the consuming assembly as a transition-shim project. The
/// TransitionShimGenerator walks referenced Fallout.* assemblies and emits
- /// shim types under mirroring the
- /// public types whose namespace begins with .
+ /// shim types under toNamespacePrefix mirroring the
+ /// public types whose namespace begins with fromNamespacePrefix.
///
[System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple = true)]
internal sealed class ShimAllPublicTypesUnderAttribute : System.Attribute
diff --git a/tests/Fallout.SourceGenerators.Tests/TransitionShimGeneratorTest.EmitsShimsForEachKindAndSkipsHardTier#ShimAllPublicTypesUnderAttribute.g.verified.cs b/tests/Fallout.SourceGenerators.Tests/TransitionShimGeneratorTest.EmitsShimsForEachKindAndSkipsHardTier#ShimAllPublicTypesUnderAttribute.g.verified.cs
index 997d07273..274831710 100644
--- a/tests/Fallout.SourceGenerators.Tests/TransitionShimGeneratorTest.EmitsShimsForEachKindAndSkipsHardTier#ShimAllPublicTypesUnderAttribute.g.verified.cs
+++ b/tests/Fallout.SourceGenerators.Tests/TransitionShimGeneratorTest.EmitsShimsForEachKindAndSkipsHardTier#ShimAllPublicTypesUnderAttribute.g.verified.cs
@@ -6,8 +6,8 @@ namespace Fallout.Migrate.Shims;
///
/// Marks the consuming assembly as a transition-shim project. The
/// TransitionShimGenerator walks referenced Fallout.* assemblies and emits
-/// shim types under mirroring the
-/// public types whose namespace begins with .
+/// shim types under toNamespacePrefix mirroring the
+/// public types whose namespace begins with fromNamespacePrefix.
///
[System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple = true)]
internal sealed class ShimAllPublicTypesUnderAttribute : System.Attribute