diff --git a/dlls/ole2.dll16/ole2.dll16.spec b/dlls/ole2.dll16/ole2.dll16.spec
index 308f77a40ae..d5d8947d052 100644
--- a/dlls/ole2.dll16/ole2.dll16.spec
+++ b/dlls/ole2.dll16/ole2.dll16.spec
@@ -149,10 +149,10 @@
 500 cdecl HGLOBALLockBytesImpl16_QueryInterface(segptr ptr ptr) HGLOBALLockBytesImpl16_QueryInterface
 501 cdecl HGLOBALLockBytesImpl16_AddRef(ptr) HGLOBALLockBytesImpl16_AddRef
 502 cdecl HGLOBALLockBytesImpl16_Release(ptr) HGLOBALLockBytesImpl16_Release
-503 cdecl HGLOBALLockBytesImpl16_ReadAt(ptr double ptr long ptr) HGLOBALLockBytesImpl16_ReadAt
-504 cdecl HGLOBALLockBytesImpl16_WriteAt(ptr double ptr long ptr) HGLOBALLockBytesImpl16_WriteAt
+503 cdecl HGLOBALLockBytesImpl16_ReadAt(ptr int64 ptr long ptr) HGLOBALLockBytesImpl16_ReadAt
+504 cdecl HGLOBALLockBytesImpl16_WriteAt(ptr int64 ptr long ptr) HGLOBALLockBytesImpl16_WriteAt
 505 cdecl HGLOBALLockBytesImpl16_Flush(ptr) HGLOBALLockBytesImpl16_Flush
-506 cdecl HGLOBALLockBytesImpl16_SetSize(ptr double) HGLOBALLockBytesImpl16_SetSize
-507 cdecl HGLOBALLockBytesImpl16_LockRegion(ptr double double long) HGLOBALLockBytesImpl16_LockRegion
-508 cdecl HGLOBALLockBytesImpl16_UnlockRegion(ptr double double long) HGLOBALLockBytesImpl16_UnlockRegion
+506 cdecl HGLOBALLockBytesImpl16_SetSize(ptr int64) HGLOBALLockBytesImpl16_SetSize
+507 cdecl HGLOBALLockBytesImpl16_LockRegion(ptr int64 int64 long) HGLOBALLockBytesImpl16_LockRegion
+508 cdecl HGLOBALLockBytesImpl16_UnlockRegion(ptr int64 int64 long) HGLOBALLockBytesImpl16_UnlockRegion
 509 cdecl HGLOBALLockBytesImpl16_Stat(ptr ptr long) HGLOBALLockBytesImpl16_Stat
diff --git a/dlls/ole32/ole32.spec b/dlls/ole32/ole32.spec
index 273ddbaa846..5fcf8414445 100644
--- a/dlls/ole32/ole32.spec
+++ b/dlls/ole32/ole32.spec
@@ -68,7 +68,7 @@
 @ stdcall CoResumeClassObjects()
 @ stdcall CoRevertToSelf()
 @ stdcall CoRevokeClassObject(long)
-@ stdcall CoRevokeInitializeSpy(double)
+@ stdcall CoRevokeInitializeSpy(int64)
 @ stdcall CoRevokeMallocSpy()
 @ stdcall CoSetProxyBlanket(ptr long long ptr long long ptr long)
 @ stdcall CoSetState(ptr)
diff --git a/dlls/storage.dll16/storage.dll16.spec b/dlls/storage.dll16/storage.dll16.spec
index d4933a7f947..c38bc872a9d 100644
--- a/dlls/storage.dll16/storage.dll16.spec
+++ b/dlls/storage.dll16/storage.dll16.spec
@@ -45,7 +45,7 @@
 520 cdecl IStream16_Release(ptr) IStream16_fnRelease
 521 cdecl IStream16_Read(ptr ptr long ptr) IStream16_fnRead
 522 cdecl IStream16_Write(ptr ptr long ptr) IStream16_fnWrite
-523 cdecl IStream16_Seek(ptr double long ptr) IStream16_fnSeek
+523 cdecl IStream16_Seek(ptr int64 long ptr) IStream16_fnSeek
 524 stub  IStream16_SetSize
 525 stub  IStream16_CopyTo
 526 stub  IStream16_Commit