diff --git a/release/c/wuffs-unsupported-snapshot.c b/release/c/wuffs-unsupported-snapshot.c
index eeccf94..9e9a316 100644
--- a/release/c/wuffs-unsupported-snapshot.c
+++ b/release/c/wuffs-unsupported-snapshot.c
@@ -26180,10 +26180,10 @@
                     v_backslash_x_ok = 128;
                     v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_backslash_x_string >> 16))];
                     v_backslash_x_ok &= v_c;
-                    v_backslash_x_value = ((v_c & 15) << 4);
+                    v_backslash_x_value = ((uint8_t)(((v_c & 15) << 4)));
                     v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_backslash_x_string >> 24))];
                     v_backslash_x_ok &= v_c;
-                    v_backslash_x_value |= (v_c & 15);
+                    v_backslash_x_value = ((uint8_t)((v_backslash_x_value | (v_c & 15))));
                     if ((v_backslash_x_ok == 0) || ((v_backslash_x_string & 65535) != 30812)) {
                       status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape);
                       goto exit;
diff --git a/std/json/decode_json.wuffs b/std/json/decode_json.wuffs
index 2b770d1..a18c66a 100644
--- a/std/json/decode_json.wuffs
+++ b/std/json/decode_json.wuffs
@@ -584,10 +584,10 @@
 
 								c = LUT_HEXADECIMAL_DIGITS[0xFF & (backslash_x_string >> 16)]
 								backslash_x_ok &= c
-								backslash_x_value = (c & 0x0F) << 4
+								backslash_x_value = ((c & 0x0F) << 4) as base.u8
 								c = LUT_HEXADECIMAL_DIGITS[0xFF & (backslash_x_string >> 24)]
 								backslash_x_ok &= c
-								backslash_x_value |= (c & 0x0F)
+								backslash_x_value = (backslash_x_value | (c & 0x0F)) as base.u8
 
 								if (backslash_x_ok == 0) or
 									((backslash_x_string & 0xFFFF) <> 0x785C) {