diff --git a/csbindgen/Cargo.toml b/csbindgen/Cargo.toml
index 4a002c0..41da2de 100644
--- a/csbindgen/Cargo.toml
+++ b/csbindgen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "csbindgen"
-version = "1.8.2"
+version = "1.8.3"
 edition = "2021"
 authors = [
   "Yoshifumi Kawai <ils@neue.cc>",
diff --git a/dotnet-sandbox/libphysx_csbindgen.cs b/dotnet-sandbox/libphysx_csbindgen.cs
index 25ab210..a924065 100644
--- a/dotnet-sandbox/libphysx_csbindgen.cs
+++ b/dotnet-sandbox/libphysx_csbindgen.cs
@@ -10238,7 +10238,7 @@ namespace Physx
         InternalError = 32,
         Abort = 64,
         PerfWarning = 128,
-        MaskAll,
+        MaskAll = -1,
     }
 
     internal enum PxConcreteType : int
@@ -10324,7 +10324,7 @@ namespace Physx
         Hairsystem = 9,
         Custom = 10,
         GeometryCount = 11,
-        Invalid,
+        Invalid = -1,
     }
 
     [Flags]