diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index c1b604491..5d8ab701c 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -4990,6 +4990,7 @@ static enum vkd3d_shader_opcode map_dx_binary_op(enum dx_intrinsic_opcode op,
             *type_flags |= DXIL_TYPE_SIGNED;
             return VSIR_OP_IMAX;
         case DX_IMIN:
+            *type_flags |= DXIL_TYPE_SIGNED;
             return VSIR_OP_IMIN;
         case DX_QUAD_READ_LANE_AT:
             return VSIR_OP_QUAD_READ_LANE_AT;
diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index 3764464fd..289dc5e1c 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -12398,7 +12398,7 @@ static const struct vsir_validator_instruction_desc vsir_validator_instructions[
     [VSIR_OP_ILT] =                              {1,   2, vsir_validate_signed_integer_comparison_operation},
     [VSIR_OP_IMAD] =                             {1,   3, vsir_validate_integer_elementwise_operation},
     [VSIR_OP_IMAX] =                             {1,   2, vsir_validate_signed_integer_elementwise_operation},
-    [VSIR_OP_IMIN] =                             {1,   2, vsir_validate_integer_elementwise_operation},
+    [VSIR_OP_IMIN] =                             {1,   2, vsir_validate_signed_integer_elementwise_operation},
     [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},