diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/BaseCSharpTest.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/BaseCSharpTest.java
index d9c393623..134487bf8 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/BaseCSharpTest.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/BaseCSharpTest.java
@@ -409,7 +409,7 @@ public class BaseCSharpTest implements RuntimeTestSupport /*, SpecialRuntimeTest
 	}
 
 	private String locateTool(String tool) {
-		String[] roots = { "/opt/local/bin/", "/usr/bin/", "/usr/local/bin/" };
+		String[] roots = { "/opt/local/bin/", "/usr/local/bin/", "/usr/bin/" };
 		for(String root : roots) {
 			if(new File(root + tool).exists())
 				return root + tool;