diff --git a/dlls/ir50_32/ir50.c b/dlls/ir50_32/ir50.c
index 87807aba25f..ccd7f245772 100644
--- a/dlls/ir50_32/ir50.c
+++ b/dlls/ir50_32/ir50.c
@@ -95,7 +95,7 @@ IV50_DecompressQuery( LPBITMAPINFO in, LPBITMAPINFO out )
             return ICERR_BADFORMAT;
         }
 
-        if ( out->bmiHeader.biBitCount != 32 && out->bmiHeader.biBitCount != 16 )
+        if ( out->bmiHeader.biBitCount != 32 && out->bmiHeader.biBitCount != 24 && out->bmiHeader.biBitCount != 16 )
         {
             TRACE("incompatible depth requested\n");
             return ICERR_BADFORMAT;
@@ -153,6 +153,8 @@ static LRESULT IV50_DecompressBegin( IMFTransform *decoder, LPBITMAPINFO in, LPB
 
     if ( out->bmiHeader.biBitCount == 32 )
         output_subtype = &MFVideoFormat_RGB32;
+    else if ( out->bmiHeader.biBitCount == 24 )
+        output_subtype = &MFVideoFormat_RGB24;
     else if ( out->bmiHeader.biBitCount == 16 )
         output_subtype = &MFVideoFormat_RGB555;
     else