diff --git a/src/windows_sys.rs b/src/windows_sys.rs
index bf26dd2e..eabaf9be 100644
--- a/src/windows_sys.rs
+++ b/src/windows_sys.rs
@@ -253,7 +253,18 @@ cfg_if::cfg_if! {
 
         #[repr(C)]
         #[derive(Clone, Copy)]
-        pub struct CONTEXT_u([u64; 32]);
+        pub struct NEON128 {
+            pub Low: u64,
+            pub High: i64,
+        }
+
+        #[repr(C)]
+        #[derive(Clone, Copy)]
+        pub union CONTEXT_FloatRegs{
+            pub Q: [NEON128; 16],
+            pub D: [u64; 32],
+            pub S: [u32; 32],
+        }
 
         #[repr(C)]
         #[derive(Clone, Copy)]
@@ -272,13 +283,16 @@ cfg_if::cfg_if! {
             pub R10: u32,
             pub R11: u32,
             pub R12: u32,
+            // Control registers
             pub Sp: u32,
             pub Lr: u32,
             pub Pc: u32,
             pub Cpsr: u32,
+            // Floating-point registers
             pub Fpsrc: u32,
             pub Padding: u32,
-            pub u: CONTEXT_u,
+            pub u: CONTEXT_FloatRegs,
+            // Debug registers
             pub Bvr: [u32; ARM_MAX_BREAKPOINTS],
             pub Bcr: [u32; ARM_MAX_BREAKPOINTS],
             pub Wvr: [u32; ARM_MAX_WATCHPOINTS],