diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index 06d6a2da25e..0b2c8c40210 100644
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -498,7 +498,7 @@ for (int bit = bit_size - 1; bit >= 0; bit--) {
 }
 """)
 
-unop_convert("ifind_msb_rev", tint32, tint, """
+unop("ifind_msb_rev", tint32, """
 dst = -1;
 /* We are looking for the highest bit that's not the same as the sign bit. */
 uint32_t sign = src0 & 0x80000000u;