diff --git a/Assets/Scripts/LibPdInstance.cs b/Assets/Scripts/LibPdInstance.cs
index b915a40..2dafca4 100644
--- a/Assets/Scripts/LibPdInstance.cs
+++ b/Assets/Scripts/LibPdInstance.cs
@@ -117,6 +117,12 @@ public class LibPdInstance : MonoBehaviour {
 	[DllImport("libpd")]
 	private static extern int libpd_init();
 
+	[DllImport("libpd")]
+	private static extern void libpd_clear_search_path();
+
+	[DllImport("libpd")]
+	private static extern void libpd_add_to_search_path([In] [MarshalAs(UnmanagedType.LPStr)] string s);
+
 	[DllImport("libpd")]
 	private static extern IntPtr libpd_new_instance();
 
@@ -537,6 +543,12 @@ public class LibPdInstance : MonoBehaviour {
 			}
 			pdInitialised = true;
 
+			// Try and add the patch directory to libpd's search path for
+			// loading externals (still can't seem to load externals when
+			// running in Unity though).
+			if(patchDir != String.Empty)
+				libpd_add_to_search_path(Application.dataPath + patchDir);
+
 			// Make sure our static pipePrintToConsole variable is set
 			// correctly.
 			pipePrintToConsoleStatic = pipePrintToConsole;