diff --git a/src/analysis/unmodified.d b/src/analysis/unmodified.d
index 011f598..eb32ae0 100644
--- a/src/analysis/unmodified.d
+++ b/src/analysis/unmodified.d
@@ -155,7 +155,12 @@ class UnmodifiedFinder:BaseAnalyzer
 
 	override void visit(const TraitsExpression)
 	{
-		// Issue #266. Ignore everything inside of __traits expressions.
+		// issue #266: Ignore unmodified variables inside of `__traits` expressions
+	}
+
+	override void visit(const TypeofExpression)
+	{
+		// issue #270: Ignore unmodified variables inside of `typeof` expressions
 	}
 
 private:
diff --git a/src/analysis/unused.d b/src/analysis/unused.d
index 30b39ed..06445a8 100644
--- a/src/analysis/unused.d
+++ b/src/analysis/unused.d
@@ -318,7 +318,12 @@ class UnusedVariableCheck : BaseAnalyzer
 
 	override void visit(const TraitsExpression)
 	{
-		// Issue #266. Ignore everything inside of __traits expressions.
+		// issue #266: Ignore unused variables inside of `__traits` expressions
+	}
+
+	override void visit(const TypeofExpression)
+	{
+		// issue #270: Ignore unused variables inside of `typeof` expressions
 	}
 
 private: