diff --git a/src/gen-use-table.py b/src/gen-use-table.py
index 1c7558447..48fd3889d 100755
--- a/src/gen-use-table.py
+++ b/src/gen-use-table.py
@@ -377,6 +377,9 @@ def map_to_use(data):
 		if U in [0x11302, 0x11303, 0x114C1]: UIPC = Top
 		if 0x1CF8 <= U <= 0x1CF9: UIPC = Top
 
+		# TODO: https://github.com/harfbuzz/harfbuzz/issues/3550
+		if U == 0x10A38: UIPC = Bottom
+
 		# TODO: https://github.com/harfbuzz/harfbuzz/pull/982
 		# also  https://github.com/harfbuzz/harfbuzz/issues/1012
 		if 0x1112A <= U <= 0x1112B: UIPC = Top
diff --git a/src/hb-ot-shape-complex-use-table.hh b/src/hb-ot-shape-complex-use-table.hh
index ea627cd27..c8e515169 100644
--- a/src/hb-ot-shape-complex-use-table.hh
+++ b/src/hb-ot-shape-complex-use-table.hh
@@ -606,7 +606,7 @@ static const uint8_t use_table[] = {
   /* 10A00 */     B,  VBlw,  VBlw,  VBlw,    WJ,  VAbv,  VBlw,    WJ,    WJ,    WJ,    WJ,    WJ,  VPst, VMBlw, VMBlw, VMAbv,
   /* 10A10 */     B,     B,     B,     B,    WJ,     B,     B,     B,    WJ,     B,     B,     B,     B,     B,     B,     B,
   /* 10A20 */     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,     B,
-  /* 10A30 */     B,     B,     B,     B,     B,     B,    WJ,    WJ, CMAbv, CMBlw, CMBlw,    WJ,    WJ,    WJ,    WJ,    IS,
+  /* 10A30 */     B,     B,     B,     B,     B,     B,    WJ,    WJ, CMBlw, CMBlw, CMBlw,    WJ,    WJ,    WJ,    WJ,    IS,
   /* 10A40 */     B,     B,     B,     B,     B,     B,     B,     B,     B,    WJ,    WJ,    WJ,    WJ,    WJ,    WJ,    WJ,
 
 #define use_offset_0x10ac0u 4304