diff --git a/Source/SwiftLintFramework/Rules/Lint/UnusedImportRule.swift b/Source/SwiftLintFramework/Rules/Lint/UnusedImportRule.swift
index 17a8614ca5..dbe429bb84 100644
--- a/Source/SwiftLintFramework/Rules/Lint/UnusedImportRule.swift
+++ b/Source/SwiftLintFramework/Rules/Lint/UnusedImportRule.swift
@@ -183,7 +183,7 @@ private extension SwiftLintFile {
     func rangedAndSortedUnusedImports(of unusedImports: [String], contents: NSString) -> [(String, NSRange)] {
         return unusedImports
             .compactMap { module in
-                match(pattern: "^(@[\\w_]+ +)?import +\(module)\\b.*?\n").first.map { (module, $0.0) }
+                match(pattern: "^(@\\w+ +)?import +\(module)\\b.*?\n").first.map { (module, $0.0) }
             }
             .sorted(by: { $0.1.location < $1.1.location })
     }
diff --git a/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift b/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
index 5c487e201a..0d5e875e50 100644
--- a/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
+++ b/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
@@ -303,6 +303,8 @@ class LinterCacheTests: XCTestCase {
     func testDetectSwiftVersion() {
         #if compiler(>=5.2.0)
             let version = "5.2.0"
+        #elseif compiler(>=5.1.5)
+            let version = "5.1.5"
         #elseif compiler(>=5.1.4)
             let version = "5.1.4"
         #elseif compiler(>=5.1.3)