diff --git a/Source/SwiftLintFramework/Extensions/File+SwiftLint.swift b/Source/SwiftLintFramework/Extensions/File+SwiftLint.swift
index c8309a56b3..0a3b123c22 100644
--- a/Source/SwiftLintFramework/Extensions/File+SwiftLint.swift
+++ b/Source/SwiftLintFramework/Extensions/File+SwiftLint.swift
@@ -291,7 +291,7 @@ extension File {
             return (false, end - start)
         }
 
-        let count = numberOfCommentAndWhitespaceOnlyLines(startLine: start, endLine: end)
+        let count = end - start - 1 - numberOfCommentAndWhitespaceOnlyLines(startLine: start, endLine: end)
         return (count > limit, count)
     }