diff --git a/hw/pci-host/gpex-acpi.c b/hw/pci-host/gpex-acpi.c
index 6fb951a0c1..dbb350a837 100644
--- a/hw/pci-host/gpex-acpi.c
+++ b/hw/pci-host/gpex-acpi.c
@@ -57,7 +57,6 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
     aml_append(method, aml_return(aml_int(cfg->ecam.base)));
     aml_append(dev, method);
 
-    method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
     Aml *rbuf = aml_resource_template();
     aml_append(rbuf,
         aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,
@@ -89,8 +88,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
                                     0x0000,
                                     cfg->mmio64.size));
     }
-    aml_append(method, aml_return(rbuf));
-    aml_append(dev, method);
+    aml_append(dev, aml_name_decl("_CRS", rbuf));
 
     /* Declare an _OSC (OS Control Handoff) method */
     aml_append(dev, aml_name_decl("SUPP", aml_int(0)));