diff --git a/src/js/slaveStatsChecker.js b/src/js/slaveStatsChecker.js
index 2987ddb8ce8dd88e24306a0b86219fb5c0785f66..923a16e3d216c43a2c582afa755923ddd0876747 100644
--- a/src/js/slaveStatsChecker.js
+++ b/src/js/slaveStatsChecker.js
@@ -1020,6 +1020,10 @@ window.getLimbCount = function(slave, id) {
 		n++;
 	}
 
+	if (id === 0) {
+		return 4 - n;
+	}
+
 	return n;
 };