diff --git a/src/common/platform/kernel_mapped.hpp b/src/common/platform/kernel_mapped.hpp
index 931c5d35..221545fb 100644
--- a/src/common/platform/kernel_mapped.hpp
+++ b/src/common/platform/kernel_mapped.hpp
@@ -883,6 +883,7 @@ typedef struct _KERNEL_USER_TIMES
 struct THREAD_TLS_INFO
 {
     ULONG Flags;
+    uint32_t _Padding;
 
     union
     {
diff --git a/src/common/platform/unicode.hpp b/src/common/platform/unicode.hpp
index f76bac36..f9cf9561 100644
--- a/src/common/platform/unicode.hpp
+++ b/src/common/platform/unicode.hpp
@@ -8,6 +8,7 @@ struct UNICODE_STRING
 {
     USHORT Length;
     USHORT MaximumLength;
+    uint32_t _Padding;
     EMULATOR_CAST(typename Traits::PVOID, char16_t*) Buffer;
 };