diff --git a/ivtest/ivltests/sv_disable_order_event_fail.v b/ivtest/ivltests/sv_disable_order_event_fail.v
new file mode 100644
index 000000000..3a28e544b
--- /dev/null
+++ b/ivtest/ivltests/sv_disable_order_event_fail.v
@@ -0,0 +1,13 @@
+// Check that a local named event hides a compilation-unit task used as a
+// disable target.
+
+task value;
+endtask
+
+module test;
+
+  event value;
+
+  initial disable value;
+
+endmodule
diff --git a/ivtest/ivltests/sv_disable_order_parameter_fail.v b/ivtest/ivltests/sv_disable_order_parameter_fail.v
new file mode 100644
index 000000000..efb0c49e1
--- /dev/null
+++ b/ivtest/ivltests/sv_disable_order_parameter_fail.v
@@ -0,0 +1,13 @@
+// Check that a local parameter hides a compilation-unit task used as a
+// disable target.
+
+task value;
+endtask
+
+module test;
+
+  parameter value = 1;
+
+  initial disable value;
+
+endmodule
diff --git a/ivtest/ivltests/sv_disable_order_variable_fail.v b/ivtest/ivltests/sv_disable_order_variable_fail.v
new file mode 100644
index 000000000..d85e375ca
--- /dev/null
+++ b/ivtest/ivltests/sv_disable_order_variable_fail.v
@@ -0,0 +1,13 @@
+// Check that a local variable hides a compilation-unit task used as a
+// disable target.
+
+task value;
+endtask
+
+module test;
+
+  integer value;
+
+  initial disable value;
+
+endmodule
diff --git a/ivtest/regress-vvp.list b/ivtest/regress-vvp.list
index 361ac014e..e144fb561 100644
--- a/ivtest/regress-vvp.list
+++ b/ivtest/regress-vvp.list
@@ -351,6 +351,9 @@ sv_default_port_value2		vvp_tests/sv_default_port_value2.json
 sv_default_port_value3		vvp_tests/sv_default_port_value3.json
 sv_dimension_null_range_fail	vvp_tests/sv_dimension_null_range_fail.json
 sv_dimension_null_size_fail	vvp_tests/sv_dimension_null_size_fail.json
+sv_disable_order_event_fail	vvp_tests/sv_disable_order_event_fail.json
+sv_disable_order_parameter_fail	vvp_tests/sv_disable_order_parameter_fail.json
+sv_disable_order_variable_fail	vvp_tests/sv_disable_order_variable_fail.json
 sv_enum_reference_order	vvp_tests/sv_enum_reference_order.json
 sv_enum_reference_order_relaxed	vvp_tests/sv_enum_reference_order_relaxed.json
 sv_foreach9			vvp_tests/sv_foreach9.json
diff --git a/ivtest/vvp_tests/sv_disable_order_event_fail.json b/ivtest/vvp_tests/sv_disable_order_event_fail.json
new file mode 100644
index 000000000..f362d9a89
--- /dev/null
+++ b/ivtest/vvp_tests/sv_disable_order_event_fail.json
@@ -0,0 +1,5 @@
+{
+    "type"          : "CE",
+    "source"        : "sv_disable_order_event_fail.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}
diff --git a/ivtest/vvp_tests/sv_disable_order_parameter_fail.json b/ivtest/vvp_tests/sv_disable_order_parameter_fail.json
new file mode 100644
index 000000000..993ee91a5
--- /dev/null
+++ b/ivtest/vvp_tests/sv_disable_order_parameter_fail.json
@@ -0,0 +1,5 @@
+{
+    "type"          : "CE",
+    "source"        : "sv_disable_order_parameter_fail.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}
diff --git a/ivtest/vvp_tests/sv_disable_order_variable_fail.json b/ivtest/vvp_tests/sv_disable_order_variable_fail.json
new file mode 100644
index 000000000..1d8d8c01e
--- /dev/null
+++ b/ivtest/vvp_tests/sv_disable_order_variable_fail.json
@@ -0,0 +1,5 @@
+{
+    "type"          : "CE",
+    "source"        : "sv_disable_order_variable_fail.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}