diff --git a/run b/run
index 14e1d15..5f99ce4 100755
--- a/run
+++ b/run
@@ -52,12 +52,19 @@ BOUNDFN=0.10.0-675-g9d93b2ccf1
 #  1 file changed, 0 insertions(+), 0 deletions(-)
 C_AARCH64=0.10.0-722-gd10fd78d46
 
-# commit 51ed5416ab2969a366c8c6bdc487f357bad267c3
+# commit 7b2a936173165002105ba5e76bed69654e132fea
 # Author: Veikka Tuominen <git@vexu.eu>
-# Date:   2022-12-12T15:40:18+02:00
+# Date:   2022-12-12T15:32:37+02:00
 #
-#     update zig1.wasm to `@call` changes
-CALL_CHANGES=0.10.0-749-g51ed5416ab
+#     remove `stack` option from `@call`
+CALL_OPTIONS=0.10.0-747-g7b2a936173-CallOptions.patch
+
+# commit 08b2d491bcd8c79c68495267cc71967661caea1e
+# Author: Veikka Tuominen <git@vexu.eu>
+# Date:   2022-12-12T15:32:37+02:00
+#
+#     update usages of `@call`
+CALL_USAGES=0.10.0-748-g08b2d491bc
 
 # commit 2a5e1426aa9469fadb78e837d0100d689213b034
 # Author: Veikka Tuominen <git@vexu.eu>
@@ -156,9 +163,9 @@ step20() {
   echo "zig1.wasm.zst was built for C-aarch64 backend"
 }
 
-generic() {
-  local FROM="$1"
-  local TO="$2"
+step30() {
+  local FROM="$C_AARCH64"
+  local TO="$CALL_OPTIONS"
 
   echo "Updating zig1.wasm from $FROM -> $TO in ../zig-$TO"
   rm -fr "../zig-$TO"
@@ -166,7 +173,24 @@ generic() {
 
   {
     pushd "../zig-$TO"
-    cp "../zig-$FROM/stage1/zig1.wasm" stage1/
+    patch -p1 <"$HERE0.10.0-747-g7b2a936173-CallOptions.patch"
+    "../zig-$FROM/build/stage3/bin/zig" build --zig-lib-dir lib update-zig1
+    popd
+  }
+  echo "zig1.wasm updated for $TO"
+}
+
+step40() {
+  echo "Updating zig1.wasm from $FROM -> $TO in ../zig-$TO"
+
+  local FROM="$CALL_OPTIONS"
+  local TO="$CALL_USAGES"
+  rm -fr "../zig-$TO"
+  git archive --prefix=zig-$TO/ "$TO" | tar -C .. -x --exclude="stage1/zig1.wasm*"
+
+  {
+    pushd "../zig-$TO"
+    cp ../zig-$FROM/stage1/zig1.wasm stage1/zig1.wasm
     mkdir build
     {
       pushd build
@@ -185,6 +209,6 @@ if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
   step00
   step10
   step20
-  #generic "$C_AARCH64" "$CALL_CHANGES" # https://ziggit.dev/t/building-self-hosted-from-the-original-c-implementation/6607/10?u=motiejus
-  #generic "$CALL_CHANGES" "$BUILTIN_TYPE" # later
+  step30
+  step40
 fi