diff --git a/_studio/mfx_lib/vpp/src/mfx_vpp_hw.cpp b/_studio/mfx_lib/vpp/src/mfx_vpp_hw.cpp
index fde31237b0..8cd81ea93a 100755
--- a/_studio/mfx_lib/vpp/src/mfx_vpp_hw.cpp
+++ b/_studio/mfx_lib/vpp/src/mfx_vpp_hw.cpp
@@ -6003,7 +6003,7 @@ mfxStatus ConfigureExecuteParams(
 
                         if (!executeParams.dstRects.empty())
                         {
-                            if (executeParams.dstRects.size() < StreamCount)
+                            if (executeParams.dstRects.capacity() < StreamCount)
                                 return MFX_ERR_INCOMPATIBLE_VIDEO_PARAM;
                         }