diff --git a/constants/misc_constants.asm b/constants/misc_constants.asm
index e9e4b7bf..57b19a37 100644
--- a/constants/misc_constants.asm
+++ b/constants/misc_constants.asm
@@ -203,4 +203,4 @@ LINK_STATE_TRADING       EQU $32 ; in a link trade
 
 LINKBATTLE_RUN       EQU $F
 LINKBATTLE_STRUGGLE  EQU $E
-LINKBATTLE_NO_ACTION EQU $D ; never sent
+LINKBATTLE_NO_ACTION EQU $D
diff --git a/engine/battle/core.asm b/engine/battle/core.asm
index cc5a6de7..d921fd15 100755
--- a/engine/battle/core.asm
+++ b/engine/battle/core.asm
@@ -3097,8 +3097,8 @@ LinkBattleExchangeData:
 	cp STRUGGLE
 	ld b, LINKBATTLE_STRUGGLE
 	jr z, .next
-	dec b
-	inc a
+	dec b ; LINKBATTLE_NO_ACTION
+	inc a ; does move equal -1 (i.e. no action)?
 	jr z, .next
 	ld a, [wPlayerMoveListIndex]
 	jr .doExchange