diff --git a/minehost.lua b/minehost.lua
index 91da9c8..cbd670d 100644
--- a/minehost.lua
+++ b/minehost.lua
@@ -92,7 +92,7 @@ local function listenForCommands()
             sendDirective(LEADER, MOVETO, x, y, z)
         elseif string.find(input, QUARRY) == 1 then
             deltasRaw = string.sub(input, string.len(QUARRY) + 1 + 1)
-            local deltas = captureString(coordsRaw, "([+-]?%d+)")
+            local deltas = captureString(deltasRaw, "([+-]?%d+)")
             sendDirective(LEADER, QUARRY, deltas[1], deltas[2], deltas[3])
         end
     end