diff --git a/SAS/Scheduler/src/blocksize.h b/SAS/Scheduler/src/blocksize.h
index 359dcc8c97257f62c65411f388c39a1a76564c0c..31d60f5be845962af218f66f5c7c040bba9d5ca4 100644
--- a/SAS/Scheduler/src/blocksize.h
+++ b/SAS/Scheduler/src/blocksize.h
@@ -111,8 +111,8 @@ public:
           if (coherentStokesEnabled) {
             // Add required multiples for the CS Beamformer
 
-            // 16 * 64 (DelayAndBandPass.cu)
-            factor = lcm(factor, 16 * 64);
+            // 16 * 256 (DelayAndBandPass.cu)
+            factor = lcm(factor, 16 * 256);
 
             // 1024 is the maxNrThreadsPerBlock (CoherentStokesKernel.cc)
             // Note that coherenthannelsPerSubband is always a power of 2 < 1024
@@ -124,8 +124,8 @@ public:
           if (incoherentStokesEnabled) {
             // Add required multiples for the IS Beamformer
 
-            // 16 * 64 (DelayAndBandPass.cu)
-            factor = lcm(factor, 16 * 64);
+            // 16 * 256 (DelayAndBandPass.cu)
+            factor = lcm(factor, 16 * 256);
 
             // integration should fit (IncoherentStokes.cu)
             factor = lcm(factor, incoherentTimeIntegrationFactor * incoherentChannelsPerSubband);