diff --git a/chunkymap-regen.py b/chunkymap-regen.py
index 1180d8d..cf16991 100644
--- a/chunkymap-regen.py
+++ b/chunkymap-regen.py
@@ -622,7 +622,7 @@ class MTChunks:
         z_max = z * self.chunk_size + self.chunk_size - 1
 
         #print ("generating x = " + str(x_min) + " to " + str(x_max) + " ,  z = " + str(z_min) + " to " + str(z_max))
-        geometry_value_string = str(x_min)+":"+str(z_min)+"+"+str(int(x_max)-int(x_min))+"+"+str(int(z_max)-int(z_min))
+        geometry_value_string = str(x_min)+":"+str(z_min)+"+"+str(int(x_max)-int(x_min)+1)+"+"+str(int(z_max)-int(z_min)+1)  # +1 since max-min is exclusive and width must be inclusive for minetestmapper.py fork
         cmd_suffix = ""
         cmd_suffix = " > \""+genresult_path+"\""
         output_type_string = "minetestmapper-numpy"
diff --git a/minetestmapper.py b/minetestmapper.py
index d9b95f6..df526f7 100644
--- a/minetestmapper.py
+++ b/minetestmapper.py
@@ -214,9 +214,9 @@ if geometry_string is not None:
             this_width = int(width_string)
             this_height = int(height_string)
             nonchunky_xmin = x
-            nonchunky_xmax = nonchunky_xmin + this_width
+            nonchunky_xmax = nonchunky_xmin + this_width - 1  # -1 since max is inclusive rect
             nonchunky_zmin = z
-            nonchunky_zmax = nonchunky_zmin + this_height
+            nonchunky_zmax = nonchunky_zmin + this_height - 1  # -1 since max is inclusive rect
             print("#geometry:")
             print("#  x:"+str(x))
             print("#  z:"+str(z))
@@ -348,9 +348,9 @@ if os.path.exists(path + "map.sqlite"):
         
         x, y, z = getIntegerAsBlock(r[0])
         
-        if x < sector_xmin or x >= sector_xmax:
+        if x < sector_xmin or x > sector_xmax:
             continue
-        if z < sector_zmin or z >= sector_zmax:
+        if z < sector_zmin or z > sector_zmax:
             continue
         
         xlist.append(x)