diff --git a/src/kernel/qgrid.cc b/src/kernel/qgrid.cc
index 836e5e156..930effc4d 100644
--- a/src/kernel/qgrid.cc
+++ b/src/kernel/qgrid.cc
@@ -256,7 +256,7 @@ namespace apfel
 
     // Return if "Q" is outside the grid range (no sum will be
     // performed).
-    if (Q < _Qg.front() - eps12 || Q > _Qg.back() + eps12)
+    if (Q < _Qg.front() || Q > _Qg.back())
       return bounds;
 
     // If Q falls in the tiny gap at the thresholds assume the node