diff -r b06c6b3eec00 -r a73cf1f26984 extensions/sdktools/vhelpers.cpp
--- a/extensions/sdktools/vhelpers.cpp	Mon May 13 14:19:17 2013 -0400
+++ b/extensions/sdktools/vhelpers.cpp	Mon May 13 15:18:12 2013 -0400
@@ -217,7 +217,12 @@
 	QAngle eye_angles;
 
 	/* Get the private information we need */
+#if SOURCE_ENGINE == SE_DOTA
+	serverClients->ClientEarPosition(IndexOfEdict(pEdict), &eye_position);
+#else
 	serverClients->ClientEarPosition(pEdict, &eye_position);
+#endif
+
 	if (!GetEyeAngles(pEntity, &eye_angles))
 	{
 		return -2;