diff --git a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
index 643578114..18350f503 100644
--- a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
+++ b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
@@ -335,9 +335,13 @@ for fnm in ("../all.3d", "../alltracks.3d"):
 		draw = draws[mapcode]
 		lastx, lasty = 0, 0
 		for l in file3d:
+			# Quickly skip data we aren't interested in
+			if l.startswith("ERROR_INFO"): continue
+			if l.startswith("XSECT"): continue
+
 			match = re.match(r'''
 			                  ^                 #start
-		(MOVE|LINE|NODE|XSECT|XSECT_END|STOP)        #one of six data types
+					  (MOVE|LINE|NODE)   #data type
 					  \s+(-?[0-9.]+)     #X-co-ord
 					  \s+(-?[0-9.]+)     #Y-co-ord
 					  \s+(-?[0-9.]+)     #altitude