diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index cd57fc943..34f045920 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -11287,6 +11287,23 @@ static void vsir_validate_endswitch(struct validation_context *ctx, const struct
         --ctx->depth;
 }
 
+static void vsir_validate_ftoi(struct validation_context *ctx, const struct vkd3d_shader_instruction *instruction)
+{
+    static const bool src_types[VKD3D_DATA_COUNT] =
+    {
+        [VKD3D_DATA_FLOAT] = true,
+        [VKD3D_DATA_DOUBLE] = true,
+        [VKD3D_DATA_HALF] = true,
+    };
+    static const bool dst_types[VKD3D_DATA_COUNT] =
+    {
+        [VKD3D_DATA_INT] = true,
+        [VKD3D_DATA_UINT] = true,
+    };
+
+    vsir_validate_cast_operation(ctx, instruction, src_types, dst_types);
+}
+
 static void vsir_validate_if(struct validation_context *ctx, const struct vkd3d_shader_instruction *instruction)
 {
     vsir_validate_cf_type(ctx, instruction, VSIR_CF_STRUCTURED);
@@ -11546,6 +11563,7 @@ static const struct vsir_validator_instruction_desc vsir_validator_instructions[
     [VSIR_OP_EXP] =                              {1,   1, vsir_validate_float_elementwise_operation},
     [VSIR_OP_FRC] =                              {1,   1, vsir_validate_float_elementwise_operation},
     [VSIR_OP_FREM] =                             {1,   2, vsir_validate_float_elementwise_operation},
+    [VSIR_OP_FTOI] =                             {1,   1, vsir_validate_ftoi},
     [VSIR_OP_GEO] =                              {1,   2, vsir_validate_float_comparison_operation},
     [VSIR_OP_GEU] =                              {1,   2, vsir_validate_float_comparison_operation},
     [VSIR_OP_HCOS] =                             {1,   1, vsir_validate_float_elementwise_operation},