diff --git a/Makefile b/Makefile
index 121413d1..655e30ca 100644
--- a/Makefile
+++ b/Makefile
@@ -527,22 +527,22 @@ accumulate-test:
 	# and 99 without it
 	test `grep '"POP1950": null' tests/ne_110m_populated_places_nulls/in.json | wc -l` == 99
 	./tippecanoe -yNAME -yPOP1950 -yclustered:cluster_size -yclustered:unrelated -q -z3 -r1.75 -b0 -f -e tests/pbf/accum.dir --accumulate-numeric-attributes=clustered --set-attribute '{"clustered:cluster_size":1}' --accumulate-attribute '{"clustered:cluster_size":"sum"}' --retain-points-multiplier 3 tests/ne_110m_populated_places_nulls/in.json
-	# at this drop rate, there are 78 points at z0 that have no POP1950s clustered onto them....
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:count:POP1950' | wc -l` == 63
-	# 35 of which have no POP1950 at all
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'POP1950' | wc -l` == 27
-	# 43 of which do have POP1950
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:count:POP1950' | grep 'POP1950' | wc -l` == 36
-	# plus 59 that are clustered
+	# at this drop rate, there are 61 points at z0 that have no POP1950s clustered onto them....
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:count:POP1950' | wc -l` == 61
+	# 26 of which have no POP1950 at all
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'POP1950' | wc -l` == 26
+	# 35 of which do have POP1950
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:count:POP1950' | grep 'POP1950' | wc -l` == 35
+	# plus 60 that are clustered
 	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:count:POP1950' | wc -l` == 60
-	# the 59 clustered POP1950s have a total count of 101
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:count:POP1950' | sed 's/.*"clustered:count:POP1950": //' | awk '{sum += $$1} END {print sum}'` == 108
+	# the 60 clustered POP1950s have a total count of 109
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:count:POP1950' | sed 's/.*"clustered:count:POP1950": //' | awk '{sum += $$1} END {print sum}'` == 109
 	# we have already established that there are 36 bare POP1950s
 	# which makes a total of 144, which is the total count expected
 	#
 	# meanwhile, regular attribute accumulation.
-	# there are 137 features in the z0 tile, and they all have clustered:cluster_size
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:cluster_size' | wc -l` == 123
+	# there are 121 features in the z0 tile, and they all have clustered:cluster_size
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:cluster_size' | wc -l` == 121
 	# there are no features that lack it.
 	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:cluster_size' | wc -l` == 0
 	# they add up to the 243 original features
@@ -550,15 +550,15 @@ accumulate-test:
 	# Make sure we do *not* accumulate a numeric attribute that already has the magic prefix:
 	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep sum:clustered:unrelated | wc -l` == 0
 	# But that we *do* preserve those attributes into the output features:
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep clustered:unrelated | wc -l` == 62
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep clustered:unrelated | wc -l` == 61
 	#
 	# on to the sums:
 	# in the original data set, the POP1950s that are present add up to 161590
 	test `grep '"POP1950": [0-9]' tests/ne_110m_populated_places_nulls/in.json | sed 's/.*"POP1950": //' | awk '{sum += $$1} END {print sum}' ` == 161590
-	# in the z0 tile, the clustered POP1950s add up to 113357
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:sum:POP1950' | sed 's/.*"clustered:sum:POP1950": //' | awk '{sum += $$1} END {print sum}'` == 115552
-	# and the non-clustered ones add up to 48233
-	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:sum:POP1950' | grep POP1950 | sed 's/.*"POP1950": //' | awk '{sum += $$1} END {print sum}'` == 46038
+	# in the z0 tile, the clustered POP1950s add up to 116967
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep 'clustered:sum:POP1950' | sed 's/.*"clustered:sum:POP1950": //' | awk '{sum += $$1} END {print sum}'` == 116967
+	# and the non-clustered ones add up to 44623
+	test `./tippecanoe-decode -c tests/pbf/accum.dir/0/0/0.pbf 0 0 0 | grep -v 'clustered:sum:POP1950' | grep POP1950 | sed 's/.*"POP1950": //' | awk '{sum += $$1} END {print sum}'` == 44623
 	# which is the correct 161590
 	#
 	# OK, so do these still hold after megatile filtering?