diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index d9dedc4a7..da5115a0a 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -11509,6 +11509,7 @@ static const struct vsir_validator_instruction_desc vsir_validator_instructions[
     [VSIR_OP_INE] =                              {1,   2, vsir_validate_integer_comparison_operation},
     [VSIR_OP_INEG] =                             {1,   1, vsir_validate_integer_elementwise_operation},
     [VSIR_OP_IREM] =                             {1,   2, vsir_validate_integer_elementwise_operation},
+    [VSIR_OP_ISFINITE] =                         {1,   1, vsir_validate_float_comparison_operation},
     [VSIR_OP_ISHL] =                             {1,   2, vsir_validate_integer_elementwise_operation},
     [VSIR_OP_ISHR] =                             {1,   2, vsir_validate_integer_elementwise_operation},
     [VSIR_OP_LABEL] =                            {0,   1, vsir_validate_label},