diff --git a/libavfilter/x86/vf_idet.asm b/libavfilter/x86/vf_idet.asm
index 35f0e07352..14b16c5779 100644
--- a/libavfilter/x86/vf_idet.asm
+++ b/libavfilter/x86/vf_idet.asm
@@ -73,7 +73,7 @@ cglobal idet_filter_line, 4, 5, 0, a, b, c, width, index
 
     mova      m0, m_sum
     psrlq     m_sum, 0x20
-    paddq     m0, m_sum
+    paddd     m0, m_sum
     movd      eax, m0
     RET
 %endmacro