diff --git a/redmapper/cluster_runner.py b/redmapper/cluster_runner.py
index 63e26ea..b445366 100644
--- a/redmapper/cluster_runner.py
+++ b/redmapper/cluster_runner.py
@@ -169,7 +169,13 @@ def _setup(self):
         # read in mask (if available)
         # This will read in the mask and maskgals
         #  Will work with any type of mask
-        self.mask = get_mask(self.config)
+
+        try:
+            self.mask = get_mask(self.config)
+        except RuntimeError as e:
+            # Do not break if the pixel is outside the coverage map.
+            self.config.logger.info(repr(e))
+            return False
 
         # read in the depth structure
         try: