diff --git a/_studio/mfx_lib/encode_hw/h264/src/mfx_h264_encode_hw.cpp b/_studio/mfx_lib/encode_hw/h264/src/mfx_h264_encode_hw.cpp
index 633af33d33..788de13f28 100644
--- a/_studio/mfx_lib/encode_hw/h264/src/mfx_h264_encode_hw.cpp
+++ b/_studio/mfx_lib/encode_hw/h264/src/mfx_h264_encode_hw.cpp
@@ -2688,7 +2688,8 @@ mfxStatus ImplementationAvc::AsyncRoutine(mfxBitstream * bs)
             }
         }
 
-        task->m_singleFieldMode = IsOn(extFeiParams->SingleFieldProcessing);
+        // In case of progressive frames in PAFF mode need to switch the flag off to prevent m_fieldCounter changes
+        task->m_singleFieldMode = (task->m_fieldPicFlag != 0) && IsOn(extFeiParams->SingleFieldProcessing);
 
 
         for (mfxU32 f = 0; f <= task->m_fieldPicFlag; f++)