4 files changed, 3 insertions, 6 deletions
diff --git a/src/bun.js/api/FFI.h b/src/bun.js/api/FFI.h
index 4763c90a3..c218dc69a 100644
--- a/src/bun.js/api/FFI.h
+++ b/src/bun.js/api/FFI.h
@@ -109,8 +109,6 @@ static EncodedJSValue _FFI_Callback_call(void* ctx, size_t argCount, ZIG_REPR_TY
   return_value.asZigRepr = FFI_Callback_call(ctx, argCount, args);
   return return_value;
 }
-static ZIG_REPR_TYPE arguments[100];
-
 #endif
 
 static bool JSVALUE_IS_CELL(EncodedJSValue val) __attribute__((__always_inline__));
diff --git a/src/bun.js/api/ffi.zig b/src/bun.js/api/ffi.zig
index e8deffd3d..269557bcc 100644
--- a/src/bun.js/api/ffi.zig
+++ b/src/bun.js/api/ffi.zig
@@ -1262,6 +1262,8 @@ pub const FFI = struct {
 
             if (this.arg_types.items.len > 0) {
                 var arg_buf: [512]u8 = undefined;
+                try writer.print(" ZIG_REPR_TYPE arguments[{d}];\n", .{this.arg_types.items.len});
+
                 arg_buf[0.."arg".len].* = "arg".*;
                 for (this.arg_types.items) |arg, i| {
                     const printed = std.fmt.bufPrintIntToSlice(arg_buf["arg".len..], i, 10, .lower, .{});
diff --git a/test/bun.js/ffi.test.fixture.callback.c b/test/bun.js/ffi.test.fixture.callback.c
index 58e6c482e..9c3c088ce 100644
--- a/test/bun.js/ffi.test.fixture.callback.c
+++ b/test/bun.js/ffi.test.fixture.callback.c
@@ -111,8 +111,6 @@ static EncodedJSValue _FFI_Callback_call(void* ctx, size_t argCount, ZIG_REPR_TY
   return_value.asZigRepr = FFI_Callback_call(ctx, argCount, args);
   return return_value;
 }
-static ZIG_REPR_TYPE arguments[100];
-
 #endif
 
 static bool JSVALUE_IS_CELL(EncodedJSValue val) __attribute__((__always_inline__));
@@ -290,6 +288,7 @@ bool my_callback_function(void* arg0) {
 #ifdef INJECT_BEFORE
 INJECT_BEFORE;
 #endif
+ ZIG_REPR_TYPE arguments[1];
 arguments[0] = PTR_TO_JSVALUE(arg0).asZigRepr;
   return (bool)JSVALUE_TO_BOOL(_FFI_Callback_call((void*)0x0UL, 1, arguments));
 }
diff --git a/test/bun.js/ffi.test.fixture.receiver.c b/test/bun.js/ffi.test.fixture.receiver.c
index c972c2df1..a507ab3a5 100644
--- a/test/bun.js/ffi.test.fixture.receiver.c
+++ b/test/bun.js/ffi.test.fixture.receiver.c
@@ -111,8 +111,6 @@ static EncodedJSValue _FFI_Callback_call(void* ctx, size_t argCount, ZIG_REPR_TY
   return_value.asZigRepr = FFI_Callback_call(ctx, argCount, args);
   return return_value;
 }
-static ZIG_REPR_TYPE arguments[100];
-
 #endif
 
 static bool JSVALUE_IS_CELL(EncodedJSValue val) __attribute__((__always_inline__));