diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index 16108da5b..9e4e9f635 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -11615,6 +11615,7 @@ static const struct vsir_validator_instruction_desc vsir_validator_instructions[
     [VSIR_OP_OR] =                               {1,   2, vsir_validate_logic_elementwise_operation},
     [VSIR_OP_ORD] =                              {1,   2, vsir_validate_float_comparison_operation},
     [VSIR_OP_PHI] =                              {1, ~0u, vsir_validate_phi},
+    [VSIR_OP_RCP] =                              {1,   1, vsir_validate_float_elementwise_operation},
     [VSIR_OP_REP] =                              {0,   1, vsir_validate_rep},
     [VSIR_OP_RET] =                              {0,   0, vsir_validate_ret},
     [VSIR_OP_SWITCH] =                           {0,   1, vsir_validate_switch},