diff --git a/Sources/CartonCore/Environment.swift b/Sources/CartonCore/Environment.swift
index 4c1d5fb2..e29249f7 100644
--- a/Sources/CartonCore/Environment.swift
+++ b/Sources/CartonCore/Environment.swift
@@ -63,7 +63,7 @@ public enum Environment: String, CaseIterable {
     // for future dynamic linking support.
     parameters.otherSwiftcFlags += ["-static-stdlib"]
 
-    #if compiler(>=6.0)
+    #if compiler(>=6.0) && compiler(<6.1)
     // A workaround for the linker issue.
     // https://github.com/swiftwasm/swift/issues/5580
     parameters.otherLinkerFlags += ["-lswift_RegexParser"]