diff --git a/release/c/wuffs-unsupported-snapshot.c b/release/c/wuffs-unsupported-snapshot.c
index 9263e47..2683704 100644
--- a/release/c/wuffs-unsupported-snapshot.c
+++ b/release/c/wuffs-unsupported-snapshot.c
@@ -32866,7 +32866,6 @@
             }
             status = wuffs_base__make_status(wuffs_base__suspension__short_read);
             WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3);
-            v_whitespace_length = 0;
             goto label__outer__continue;
           }
           v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src);
@@ -32928,7 +32927,6 @@
                 }
                 status = wuffs_base__make_status(wuffs_base__suspension__short_read);
                 WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5);
-                v_string_length = 0;
                 goto label__string_loop_outer__continue;
               }
               while (((uint64_t)(io2_a_src - iop_a_src)) > 4) {
@@ -34468,7 +34466,6 @@
           if (status.repr) {
             goto suspend;
           }
-          v_c = 0;
           if (self->private_impl.f_comment_type > 0) {
             goto label__outer__continue;
           }
diff --git a/std/json/decode_json.wuffs b/std/json/decode_json.wuffs
index 78a8198..8cf7037 100644
--- a/std/json/decode_json.wuffs
+++ b/std/json/decode_json.wuffs
@@ -167,7 +167,6 @@
 					return "#bad input"
 				}
 				yield? base."$short read"
-				whitespace_length = 0
 				continue.outer
 			}
 
@@ -255,7 +254,6 @@
 							return "#bad input"
 						}
 						yield? base."$short read"
-						string_length = 0
 						continue.string_loop_outer
 					}
 
@@ -1717,7 +1715,6 @@
 					return "#bad input"
 				}
 				this.decode_comment?(dst: args.dst, src: args.src)
-				c = 0
 				if this.comment_type > 0 {
 					continue.outer
 				}