diff --git a/reactos/dll/win32/msvcrt/msvcrt.spec b/reactos/dll/win32/msvcrt/msvcrt.spec
index 1dc1b1e2a73..b55f7aac52f 100644
--- a/reactos/dll/win32/msvcrt/msvcrt.spec
+++ b/reactos/dll/win32/msvcrt/msvcrt.spec
@@ -99,7 +99,7 @@
 # stub _CrtSetReportHook
 # stub _CrtSetReportHook2
 # stub _CrtSetReportMode
-@ cdecl _CxxThrowException(long long)
+@ stdcall _CxxThrowException(long long)
 @ cdecl -i386 -norelay _EH_prolog()
 @ cdecl _Getdays()
 @ cdecl _Getmonths()
diff --git a/reactos/dll/win32/msvcrt20/msvcrt20.spec b/reactos/dll/win32/msvcrt20/msvcrt20.spec
index 91e633c3338..dffade1ec24 100644
--- a/reactos/dll/win32/msvcrt20/msvcrt20.spec
+++ b/reactos/dll/win32/msvcrt20/msvcrt20.spec
@@ -453,7 +453,7 @@
 @ cdecl -arch=i386 _CIsqrt() msvcrt._CIsqrt
 @ cdecl -arch=i386 _CItan() msvcrt._CItan
 @ cdecl -arch=i386 _CItanh() msvcrt._CItanh
-@ cdecl _CxxThrowException(long long) msvcrt._CxxThrowException
+@ stdcall _CxxThrowException(long long) msvcrt._CxxThrowException
 @ extern _HUGE msvcrt._HUGE
 @ cdecl _XcptFilter(long ptr) msvcrt._XcptFilter
 @ cdecl -i386 __CxxFrameHandler(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler
diff --git a/reactos/dll/win32/msvcrt40/msvcrt40.spec b/reactos/dll/win32/msvcrt40/msvcrt40.spec
index fd2559a7a45..3e43afa908b 100644
--- a/reactos/dll/win32/msvcrt40/msvcrt40.spec
+++ b/reactos/dll/win32/msvcrt40/msvcrt40.spec
@@ -497,7 +497,7 @@
 @ cdecl -arch=i386 _CIsqrt() msvcrt._CIsqrt
 @ cdecl -arch=i386 _CItan() msvcrt._CItan
 @ cdecl -arch=i386 _CItanh() msvcrt._CItanh
-@ cdecl _CxxThrowException(long long) msvcrt._CxxThrowException
+@ stdcall _CxxThrowException(long long) msvcrt._CxxThrowException
 @ cdecl -i386 _EH_prolog() msvcrt._EH_prolog
 @ extern _HUGE msvcrt._HUGE
 @ cdecl _XcptFilter(long ptr) msvcrt._XcptFilter
diff --git a/reactos/lib/sdk/crt/except/cppexcept.c b/reactos/lib/sdk/crt/except/cppexcept.c
index 5ff9e2b0f39..17d6715d7f9 100644
--- a/reactos/lib/sdk/crt/except/cppexcept.c
+++ b/reactos/lib/sdk/crt/except/cppexcept.c
@@ -490,7 +490,7 @@ int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr)
 /*********************************************************************
  *		_CxxThrowException (MSVCRT.@)
  */
-void CDECL _CxxThrowException( exception *object, const cxx_exception_type *type )
+void WINAPI _CxxThrowException( exception *object, const cxx_exception_type *type )
 {
     ULONG_PTR args[3];
 
diff --git a/reactos/lib/sdk/crt/include/internal/wine/cppexcept.h b/reactos/lib/sdk/crt/include/internal/wine/cppexcept.h
index 1d0942e2f1f..d1b60c3139b 100644
--- a/reactos/lib/sdk/crt/include/internal/wine/cppexcept.h
+++ b/reactos/lib/sdk/crt/include/internal/wine/cppexcept.h
@@ -150,7 +150,7 @@ typedef struct __cxx_exception_type
     const cxx_type_info_table *type_info_table;  /* list of types for this exception object */
 } cxx_exception_type;
 
-void CDECL _CxxThrowException(exception*,const cxx_exception_type*);
+void WINAPI _CxxThrowException(exception*,const cxx_exception_type*);
 int CDECL _XcptFilter(NTSTATUS, PEXCEPTION_POINTERS);
 int CDECL __CppXcptFilter(NTSTATUS, PEXCEPTION_POINTERS);