diff --git a/source/dub/compilers/dmd.d b/source/dub/compilers/dmd.d
index 6f55ee0..29a3d2c 100644
--- a/source/dub/compilers/dmd.d
+++ b/source/dub/compilers/dmd.d
@@ -352,7 +352,7 @@
 		return args.map!(s => s.canFind(' ') ? "\""~s~"\"" : s);
 	}
 
-	private static bool isLinkerDFlag(string arg)
+	static bool isLinkerDFlag(string arg)
 	{
 		switch (arg) {
 			default:
diff --git a/source/dub/compilers/ldc.d b/source/dub/compilers/ldc.d
index 2fbe362..9170896 100644
--- a/source/dub/compilers/ldc.d
+++ b/source/dub/compilers/ldc.d
@@ -271,7 +271,7 @@
 		return args.map!(s => s.canFind(' ') ? "\""~s~"\"" : s);
 	}
 
-	private static bool isLinkerDFlag(string arg)
+	static bool isLinkerDFlag(string arg)
 	{
 		if (arg.length > 2 && arg.startsWith("--"))
 			arg = arg[1 .. $]; // normalize to 1 leading hyphen