diff --git a/GUI.NET/RuntimeChecker.cs b/GUI.NET/RuntimeChecker.cs
index 057377c8..0928c766 100644
--- a/GUI.NET/RuntimeChecker.cs
+++ b/GUI.NET/RuntimeChecker.cs
@@ -20,8 +20,15 @@ namespace Mesen.GUI
 				return InteropEmu.TestDll();
 			} catch {
 			}
+			
+			bool dllExists;
+			if(Program.IsMono) {
+				dllExists = File.Exists(Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location), "libMesenCore.dll"));
+			} else {
+				dllExists = File.Exists("MesenCore.dll");
+			}
 
-			if(!File.Exists("MesenCore.dll") && !File.Exists("libMesenCore.dll")) {
+			if(!dllExists) {
 				MesenMsgBox.Show("UnableToStartMissingFiles", MessageBoxButtons.OK, MessageBoxIcon.Error);
 			} else {
 				MesenMsgBox.Show("UnableToStartMissingDependencies", MessageBoxButtons.OK, MessageBoxIcon.Error);