diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index cbccf17b707..abdbccd07e1 100644
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -423,7 +423,7 @@ unop_horiz("unpack_64_2x32", 2, tuint32, 1, tuint64,
            "dst.x = src0.x; dst.y = src0.x >> 32;")
 
 unop_horiz("unpack_64_4x16", 4, tuint16, 1, tuint64,
-           "dst.x = src0.x; dst.y = src0.x >> 16; dst.z = src0.x >> 32; dst.w = src0.w >> 48;")
+           "dst.x = src0.x; dst.y = src0.x >> 16; dst.z = src0.x >> 32; dst.w = src0.x >> 48;")
 
 unop_horiz("unpack_32_2x16", 2, tuint16, 1, tuint32,
            "dst.x = src0.x; dst.y = src0.x >> 16;")