diff --git a/code/gcd.txt b/code/gcd.txt
index 8c0c910..bcdeb55 100644
--- a/code/gcd.txt
+++ b/code/gcd.txt
@@ -5,7 +5,7 @@ gto
 =u
 $u
 $v
->loop
+>gcd-loop
 gge
 $u
 =t
@@ -13,10 +13,10 @@ $v
 =u
 $t
 =v
-:loop
+:gcd-loop
 $v
 0
->ret
+>gcd-ret
 gle
 $v
 =t
@@ -26,9 +26,9 @@ mod
 =v
 $t
 =u
->loop
+>gcd-loop
 gto
-:ret
+:gcd-ret
 $u
 ret
 :main