diff --git a/dlls/avifil32/avifile.c b/dlls/avifil32/avifile.c
index a045bf3d92b..d407445dd6d 100644
--- a/dlls/avifil32/avifile.c
+++ b/dlls/avifil32/avifile.c
@@ -704,7 +704,7 @@ static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
   if (This->paf->szFileName != NULL) {
     int len = lstrlenW(This->paf->szFileName) + 1;
 
-    *ppszFileName = (LPOLESTR)GlobalAllocPtr(GHND, len * sizeof(WCHAR));
+    *ppszFileName = CoTaskMemAlloc(len * sizeof(WCHAR));
     if (*ppszFileName == NULL)
       return AVIERR_MEMORY;
 
diff --git a/dlls/avifil32/wavfile.c b/dlls/avifil32/wavfile.c
index 4ed7e52d59a..6ea7e447ed3 100644
--- a/dlls/avifil32/wavfile.c
+++ b/dlls/avifil32/wavfile.c
@@ -662,7 +662,7 @@ static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
   if (This->paf->szFileName != NULL) {
     int len = lstrlenW(This->paf->szFileName) + 1;
 
-    *ppszFileName = GlobalAllocPtr(GHND, len * sizeof(WCHAR));
+    *ppszFileName = CoTaskMemAlloc(len * sizeof(WCHAR));
     if (*ppszFileName == NULL)
       return AVIERR_MEMORY;