diff --git a/src/common/platform/kernel_mapped.hpp b/src/common/platform/kernel_mapped.hpp
index cc2303c8..5d7dcb85 100644
--- a/src/common/platform/kernel_mapped.hpp
+++ b/src/common/platform/kernel_mapped.hpp
@@ -215,6 +215,32 @@ union PEB_LEAP_SECONDS_FLAG_UNION
     };
 };
 
+#define MAXIMUM_LEADBYTES 12
+
+typedef struct _CPTABLEINFO
+{
+    USHORT CodePage;
+    USHORT MaximumCharacterSize;
+    USHORT DefaultChar;
+    USHORT UniDefaultChar;
+    USHORT TransDefaultChar;
+    USHORT TransUniDefaultChar;
+    USHORT DBCSCodePage;
+    UCHAR LeadByte[MAXIMUM_LEADBYTES];
+    USHORT* MultiByteTable;
+    void* WideCharTable;
+    USHORT* DBCSRanges;
+    USHORT* DBCSOffsets;
+} CPTABLEINFO, *PCPTABLEINFO;
+
+typedef struct _NLSTABLEINFO
+{
+    CPTABLEINFO OemTableInfo;
+    CPTABLEINFO AnsiTableInfo;
+    USHORT* UpperCaseTable;
+    USHORT* LowerCaseTable;
+} NLSTABLEINFO, *PNLSTABLEINFO;
+
 typedef struct _PEB64
 {
     BOOLEAN InheritedAddressSpace;
@@ -246,9 +272,9 @@ typedef struct _PEB64
     EMULATOR_CAST(void*, PSILO_USER_SHARED_DATA) SharedData; // HotpatchInformation
     std::uint64_t** ReadOnlyStaticServerData;
 
-    std::uint64_t* AnsiCodePageData;     // PCPTABLEINFO
-    std::uint64_t* OemCodePageData;      // PCPTABLEINFO
-    std::uint64_t* UnicodeCaseTableData; // PNLSTABLEINFO
+    EMULATOR_CAST(EmulatorTraits<Emu64>::PVOID, PCPTABLEINFO) AnsiCodePageData;      // PCPTABLEINFO
+    EMULATOR_CAST(EmulatorTraits<Emu64>::PVOID, PCPTABLEINFO) OemCodePageData;       // PCPTABLEINFO
+    EMULATOR_CAST(EmulatorTraits<Emu64>::PVOID, PNLSTABLEINFO) UnicodeCaseTableData; // PNLSTABLEINFO
 
     ULONG NumberOfProcessors;
     ULONG NtGlobalFlag;
diff --git a/src/windows-emulator/windows_emulator.cpp b/src/windows-emulator/windows_emulator.cpp
index 115a87f7..52577ab1 100644
--- a/src/windows-emulator/windows_emulator.cpp
+++ b/src/windows-emulator/windows_emulator.cpp
@@ -266,6 +266,10 @@ namespace
             peb.OSPlatformId = 2;
             peb.OSMajorVersion = 0x0000000a;
             peb.OSBuildNumber = 0x00006c51;
+
+            peb.AnsiCodePageData = allocator.reserve<CPTABLEINFO>().value();
+            peb.OemCodePageData = allocator.reserve<CPTABLEINFO>().value();
+            peb.UnicodeCaseTableData = allocator.reserve<NLSTABLEINFO>().value();
         });
     }