diff --git a/.cargo/config.toml b/.cargo/config.toml
index 67d105683..737f4b818 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -10,3 +10,10 @@ linker = "armv7a-linux-androideabi21-clang"
 
 [target.aarch64-linux-android]
 linker = "aarch64-linux-android21-clang"
+
+# Windows targets — increase stack size for large JsonSchema derives
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-C", "link-args=/STACK:8388608"]
+
+[target.aarch64-pc-windows-msvc]
+rustflags = ["-C", "link-args=/STACK:8388608"]
\ No newline at end of file