diff --git a/runtime/platform/unwinding_records.cc b/runtime/platform/unwinding_records.cc
index f0c7189e786..1b9c4f6f540 100644
--- a/runtime/platform/unwinding_records.cc
+++ b/runtime/platform/unwinding_records.cc
@@ -7,14 +7,14 @@
 
 namespace dart {
 
-#if !defined(DART_TARGET_OS_WINDOWS) ||                                        \
+#if (!defined(DART_TARGET_OS_WINDOWS) && !defined(DART_HOST_OS_WINDOWS)) ||    \
     (!defined(TARGET_ARCH_X64) && !defined(TARGET_ARCH_ARM64))
 
 intptr_t UnwindingRecordsPlatform::SizeInBytes() {
   return 0;
 }
 
-#endif  // !defined(DART_TARGET_OS_WINDOWS) ...
+#endif  // (!defined(DART_TARGET_OS_WINDOWS) && !defined(DART_HOST_OS_WINDOWS))
 
 #if !defined(DART_HOST_OS_WINDOWS) ||                                          \
     (!defined(TARGET_ARCH_X64) && !defined(TARGET_ARCH_ARM64))
diff --git a/runtime/platform/unwinding_records.h b/runtime/platform/unwinding_records.h
index e8a7f88a29b..8eab924da31 100644
--- a/runtime/platform/unwinding_records.h
+++ b/runtime/platform/unwinding_records.h
@@ -26,7 +26,8 @@ class UnwindingRecordsPlatform : public AllStatic {
   static void* GetDeleteGrowableFunctionTableFunc();
 };
 
-#if defined(DART_TARGET_OS_WINDOWS) && defined(TARGET_ARCH_X64)
+#if (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS)) &&      \
+    defined(TARGET_ARCH_X64)
 
 #pragma pack(push, 1)
 //
@@ -104,7 +105,8 @@ struct CodeRangeUnwindingRecord {
 
 #pragma pack(pop)
 
-#elif defined(DART_TARGET_OS_WINDOWS) && defined(TARGET_ARCH_ARM64)
+#elif (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS)) &&    \
+    defined(TARGET_ARCH_ARM64)
 
 #pragma pack(push, 1)
 
@@ -237,7 +239,7 @@ struct CodeRangeUnwindingRecord {
 
 #pragma pack(pop)
 
-#endif  // defined(DART_TARGET_OS_WINDOWS) && defined(TARGET_ARCH_X64)
+#endif  // (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS))
 
 }  // namespace dart
 
diff --git a/runtime/platform/unwinding_records_win.cc b/runtime/platform/unwinding_records_win.cc
index 466968ffe01..ade1986eb3c 100644
--- a/runtime/platform/unwinding_records_win.cc
+++ b/runtime/platform/unwinding_records_win.cc
@@ -9,7 +9,7 @@
 
 namespace dart {
 
-#if defined(DART_TARGET_OS_WINDOWS) &&                                         \
+#if (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS)) &&      \
     (defined(TARGET_ARCH_X64) || defined(TARGET_ARCH_ARM64))
 
 #if defined(TARGET_ARCH_X64)
@@ -22,7 +22,7 @@ intptr_t UnwindingRecordsPlatform::SizeInBytes() {
   return kReservedUnwindingRecordsSizeBytes;
 }
 
-#endif  // defined(DART_TARGET_OS_WINDOWS)
+#endif  // defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS)
 
 #if defined(DART_HOST_OS_WINDOWS) &&                                           \
     (defined(TARGET_ARCH_X64) || defined(TARGET_ARCH_ARM64))
diff --git a/runtime/vm/unwinding_records.cc b/runtime/vm/unwinding_records.cc
index 0514e33bd17..9ef2451a2be 100644
--- a/runtime/vm/unwinding_records.cc
+++ b/runtime/vm/unwinding_records.cc
@@ -7,7 +7,7 @@
 
 namespace dart {
 
-#if !defined(DART_TARGET_OS_WINDOWS) ||                                        \
+#if (!defined(DART_TARGET_OS_WINDOWS) && !defined(DART_HOST_OS_WINDOWS)) ||    \
     (!defined(TARGET_ARCH_X64) && !defined(TARGET_ARCH_ARM64))
 
 const void* UnwindingRecords::GenerateRecordsInto(intptr_t offset,
diff --git a/runtime/vm/unwinding_records_win.cc b/runtime/vm/unwinding_records_win.cc
index 385c6084b13..84aebe36387 100644
--- a/runtime/vm/unwinding_records_win.cc
+++ b/runtime/vm/unwinding_records_win.cc
@@ -10,7 +10,7 @@
 
 namespace dart {
 
-#if defined(DART_TARGET_OS_WINDOWS) &&                                         \
+#if (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS)) &&      \
     (defined(TARGET_ARCH_X64) || defined(TARGET_ARCH_ARM64))
 
 static void InitUnwindingRecord(intptr_t offset,
@@ -101,7 +101,7 @@ const void* UnwindingRecords::GenerateRecordsInto(intptr_t offset,
   return target_buffer;
 }
 
-#endif  // defined(DART_TARGET_OS_WINDOWS)
+#endif  // (defined(DART_TARGET_OS_WINDOWS) || defined(DART_HOST_OS_WINDOWS))
 
 #if defined(DART_HOST_OS_WINDOWS) &&                                           \
     (defined(TARGET_ARCH_X64) || defined(TARGET_ARCH_ARM64))