diff --git a/examples/ex_4.c b/examples/ex_4.c
index 26cf1c8..99b40fc 100644
--- a/examples/ex_4.c
+++ b/examples/ex_4.c
@@ -92,6 +92,7 @@ main(void)
   // create the sparse bitmap
   sparsemap_t *map = sparsemap(buf, sizeof(uint8_t) * TEST_ARRAY_SIZE, 0);
 
+#if 0
   for (i = 0; i < 8; i++) sparsemap_set(map, i, true);
   rank = sparsemap_rank(map, 0, 8);
   __diag("rank was %lu at offset 0\n", rank);
@@ -115,35 +116,19 @@ main(void)
   rank = sparsemap_rank(map, 0, 10);
   __diag("rank was %lu between [0, 10]\n", rank);
   assert(rank == 5);
-  for (i = 100; i < 108; i++) {
-    bool set = sparsemap_is_set(map, i);
-    if (set) {
-      __diag("verified %d was set, %s\n", i,
-        was_set(i, array) ? "but knew that" : "because it wasn't");
-    } else {
-      __diag("darn, %d was not set, %s\n", i,
-        was_set(i, array) ? "and yet we did set it" : "because it wasn't");
-    }
-  }
-  __diag("and %d was %s", i, sparsemap_is_set(map, i + 1) ? "set" : "not set");
-  rank = sparsemap_rank(map, 109, 8);
-  __diag("rank was %lu at offset 109\n", rank);
-  rank = sparsemap_span(map, 0, 8);
-  __diag("span was found at %lu\n", rank);
   sparsemap_clear(map);
+#endif
 
   for (i = 2049; i < 2057; i++) sparsemap_set(map, i, true);
-  rank = sparsemap_rank(map, 2048, 8);
+  rank = sparsemap_rank(map, 2049, 2058);
   __diag("rank was %lu at offset 108\n", rank);
   assert(rank == 8);
-  for (i = 100; i < 108; i++) {
+  for (i = 2049; i < 2057; i++) {
     bool set = sparsemap_is_set(map, i);
     if (set) {
-      __diag("verified %d was set, %s\n", i,
-        was_set(i, array) ? "but we thought it was" : "because it wasn't");
+      __diag("verified %d was set, %s\n", i);
     } else {
-      __diag("darn, %d was not really set, %s\n", i,
-        was_set(i, array) ? "but we thought it was" : "because it wasn't");
+      __diag("darn, %d was not really set, %s\n", i);
     }
   }
   __diag("and %d was %s", i, sparsemap_is_set(map, i + 1) ? "set" : "not set");
diff --git a/src/sparsemap.c b/src/sparsemap.c
index a0faa5d..dc1f8fd 100644
--- a/src/sparsemap.c
+++ b/src/sparsemap.c
@@ -492,7 +492,6 @@ __sm_chunk_map_rank(__sm_chunk_t *map, size_t start, size_t idx)
         } else {
           sm_bitvec_t w = map->m_data[1 +
             __sm_chunk_map_get_position(map, i * SM_FLAGS_PER_INDEX_BYTE + j)];
-          idx -= start;
           for (size_t k = 0; k < idx; k++) {
             if (w & ((sm_bitvec_t)1 << k)) {
               ret++;