diff --git a/internal/usecase/devices/wsman/message.go b/internal/usecase/devices/wsman/message.go
index 2a8fa761e..4dbb6ec19 100644
--- a/internal/usecase/devices/wsman/message.go
+++ b/internal/usecase/devices/wsman/message.go
@@ -531,11 +531,26 @@ func createMapInterfaceForHWInfo(hwResults HWResults) (interface{}, error) {
 		}, "CIM_Processor": map[string]interface{}{
 			"responses": []interface{}{hwResults.ProcessorResult.Body.PackageResponse},
 		}, "CIM_PhysicalMemory": map[string]interface{}{
-			"responses": hwResults.PhysicalMemoryResult.Body.PullResponse.MemoryItems,
+			"responses": interfaceSlice(hwResults.PhysicalMemoryResult.Body.PullResponse.MemoryItems),
 		},
 	}, nil
 }
 
+// interfaceSlice converts []physical.PhysicalMemory to []interface{} for consistent handling.
+func interfaceSlice(items []physical.PhysicalMemory) []interface{} {
+	if items == nil {
+		return []interface{}{}
+	}
+
+	result := make([]interface{}, len(items))
+
+	for i := range items {
+		result[i] = items[i]
+	}
+
+	return result
+}
+
 func createMapInterfaceForDiskInfo(diskResults DiskResults) (interface{}, error) {
 	return map[string]interface{}{
 		"CIM_MediaAccessDevice": map[string]interface{}{
diff --git a/internal/usecase/devices/wsman/message_test.go b/internal/usecase/devices/wsman/message_test.go
new file mode 100644
index 000000000..97f7f8376
--- /dev/null
+++ b/internal/usecase/devices/wsman/message_test.go
@@ -0,0 +1,84 @@
+package wsman
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/device-management-toolkit/go-wsman-messages/v2/pkg/wsman/cim/physical"
+)
+
+func TestInterfaceSlice(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		input    []physical.PhysicalMemory
+		expected []interface{}
+	}{
+		{
+			name:     "empty slice",
+			input:    []physical.PhysicalMemory{},
+			expected: []interface{}{},
+		},
+		{
+			name: "single item",
+			input: []physical.PhysicalMemory{
+				{
+					Capacity:     17179869184, // 16 GB
+					Manufacturer: "Kingston",
+					PartNumber:   "9905700-101.A00G",
+				},
+			},
+			expected: []interface{}{
+				physical.PhysicalMemory{
+					Capacity:     17179869184,
+					Manufacturer: "Kingston",
+					PartNumber:   "9905700-101.A00G",
+				},
+			},
+		},
+		{
+			name: "multiple items",
+			input: []physical.PhysicalMemory{
+				{
+					Capacity:     8589934592, // 8 GB
+					Manufacturer: "Samsung",
+					PartNumber:   "M471A1K43CB1-CRC",
+				},
+				{
+					Capacity:     8589934592, // 8 GB
+					Manufacturer: "Samsung",
+					PartNumber:   "M471A1K43CB1-CRC",
+				},
+			},
+			expected: []interface{}{
+				physical.PhysicalMemory{
+					Capacity:     8589934592,
+					Manufacturer: "Samsung",
+					PartNumber:   "M471A1K43CB1-CRC",
+				},
+				physical.PhysicalMemory{
+					Capacity:     8589934592,
+					Manufacturer: "Samsung",
+					PartNumber:   "M471A1K43CB1-CRC",
+				},
+			},
+		},
+		{
+			name:     "nil slice",
+			input:    nil,
+			expected: []interface{}{},
+		},
+	}
+
+	for _, tc := range tests {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			result := interfaceSlice(tc.input)
+			require.Equal(t, tc.expected, result)
+		})
+	}
+}