diff --git a/data/maps/DesertUnderpass/scripts.inc b/data/maps/DesertUnderpass/scripts.inc
index 518d988832..1a20e0add2 100644
--- a/data/maps/DesertUnderpass/scripts.inc
+++ b/data/maps/DesertUnderpass/scripts.inc
@@ -18,12 +18,14 @@ DesertUnderpass_EventScript_Fossil::
 
 DesertUnderpass_EventScript_GiveClawFossil::
 	giveitem ITEM_CLAW_FOSSIL
+	goto_if_eq VAR_RESULT, FALSE, Common_EventScript_ShowBagIsFull
 	removeobject LOCALID_FOSSIL
 	release
 	end
 
 DesertUnderpass_EventScript_GiveRootFossil::
 	giveitem ITEM_ROOT_FOSSIL
+	goto_if_eq VAR_RESULT, FALSE, Common_EventScript_ShowBagIsFull
 	removeobject LOCALID_FOSSIL
 	release
 	end
diff --git a/data/maps/MirageTower_4F/scripts.inc b/data/maps/MirageTower_4F/scripts.inc
index 61bde877c5..6fce7fa10b 100644
--- a/data/maps/MirageTower_4F/scripts.inc
+++ b/data/maps/MirageTower_4F/scripts.inc
@@ -10,6 +10,7 @@ MirageTower_4F_EventScript_RootFossil::
 	msgbox MirageTower_4F_Text_TakeRootFossil, MSGBOX_YESNO
 	goto_if_eq VAR_RESULT, NO, MirageTower_4F_EventScript_LeaveRootFossil
 	giveitem ITEM_ROOT_FOSSIL
+	goto_if_eq VAR_RESULT, FALSE, Common_EventScript_ShowBagIsFull
 	closemessage
 	setflag FLAG_HIDE_MIRAGE_TOWER_ROOT_FOSSIL
 	setflag FLAG_HIDE_MIRAGE_TOWER_CLAW_FOSSIL
@@ -30,6 +31,7 @@ MirageTower_4F_EventScript_ClawFossil::
 	msgbox MirageTower_4F_Text_TakeClawFossil, MSGBOX_YESNO
 	goto_if_eq VAR_RESULT, NO, MirageTower_4F_EventScript_LeaveClawFossil
 	giveitem ITEM_CLAW_FOSSIL
+	goto_if_eq VAR_RESULT, FALSE, Common_EventScript_ShowBagIsFull
 	closemessage
 	setflag FLAG_HIDE_MIRAGE_TOWER_CLAW_FOSSIL
 	setflag FLAG_HIDE_MIRAGE_TOWER_ROOT_FOSSIL