diff --git a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
index ed8dbfb22..12ef4de73 100644
--- a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
+++ b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
@@ -188,7 +188,8 @@ def get_img_name(maparea):
 maps = {
 # id	left		top		right		bottom		zoom
 #	G&K		G&K		G&K		G&K		factor
-"all": [34950.9,	86300.0,	38325.0,	80895.6,	1.0,	"All"],
+# DO NOT just change the coordinates of "all" - they MUST match the borders of the scanned map.
+"all": [34394.9,	84508.6,	37399.4,	80895.6,	1.0,	"All"],
 "40":  [36275.6,	82392.5,	36780.3,	81800.0,	3.0,	"Eishöhle"],
 "76":  [35440.0,	83220.0,	36090.0,	82670.0,	3.0,	"Eislufthöhle"],
 "204": [36354.1,	84154.5,	37047.4,	83399.7,	3.0,	"Steinbrückenhöhle"],