diff --git a/reactos/dll/win32/shell32/shell32.spec b/reactos/dll/win32/shell32/shell32.spec
index 75fb65ffd3c..bb7e0d23c09 100644
--- a/reactos/dll/win32/shell32/shell32.spec
+++ b/reactos/dll/win32/shell32/shell32.spec
@@ -316,7 +316,7 @@
 316 stdcall SHGetSpecialFolderLocation(long long ptr)
 317 stdcall SHGetSpecialFolderPathA(long ptr long long)
 318 stdcall SHGetSpecialFolderPathW(long ptr long long)
-319 stub SHGetUnreadMailCountW
+319 stdcall SHGetUnreadMailCountW (long wstr long ptr wstr long)
 320 stdcall SHHelpShortcuts_RunDLL(long long long long) SHHelpShortcuts_RunDLLA
 321 stdcall SHHelpShortcuts_RunDLLA(long long long long)
 322 stdcall SHHelpShortcuts_RunDLLW(long long long long)
@@ -332,7 +332,7 @@
 332 stdcall SHQueryRecycleBinA(str ptr)
 333 stdcall SHQueryRecycleBinW(wstr ptr)
 334 stdcall SHSetLocalizedName(wstr wstr long)
-335 stub SHSetUnreadMailCountW
+335 stdcall SHSetUnreadMailCountW (wstr long wstr)
 336 stdcall SHUpdateRecycleBinIcon()
 337 stdcall SheChangeDirA(str)
 338 stdcall SheChangeDirExA(str)
diff --git a/reactos/dll/win32/shell32/stubs.c b/reactos/dll/win32/shell32/stubs.c
index 2ac288701d3..0056a4f2c6f 100644
--- a/reactos/dll/win32/shell32/stubs.c
+++ b/reactos/dll/win32/shell32/stubs.c
@@ -131,6 +131,32 @@ SHCreateFileExtractIconW(LPCWSTR pszPath,
     return E_FAIL;
 }
 
+HRESULT
+WINAPI
+SHGetUnreadMailCountW(HKEY hKeyUser,
+                      LPCWSTR pszMailAddress,
+                      DWORD *pdwCount,
+                      FILETIME *pFileTime,
+                      LPCWSTR pszShellExecuteCommand,
+                      int cchShellExecuteCommand)
+{
+    FIXME("SHGetUnreadMailCountW() stub\n");
+    return E_FAIL;
+};
+
+/*
+ * Unimplemented
+ */
+HRESULT
+WINAPI
+SHSetUnreadMailCountW(LPCWSTR pszMailAddress,
+                      DWORD dwCount,
+                      LPCWSTR pszShellExecuteCommand)
+{
+    FIXME("SHSetUnreadMailCountW() stub\n");
+    return E_FAIL;
+}
+
 /*
  * Unimplemented
  */