diff --git a/src/arch/x86/include/arch/pci_ops.h b/src/arch/x86/include/arch/pci_ops.h
index 317e597cff..abbd35c07d 100644
--- a/src/arch/x86/include/arch/pci_ops.h
+++ b/src/arch/x86/include/arch/pci_ops.h
@@ -4,6 +4,8 @@
 #define ARCH_I386_PCI_OPS_H
 
 #include <arch/pci_io_cfg.h>
+#if CONFIG(MMCONF_SUPPORT)
 #include <device/pci_mmio_cfg.h>
+#endif
 
 #endif /* ARCH_I386_PCI_OPS_H */
diff --git a/src/include/device/pci_mmio_cfg.h b/src/include/device/pci_mmio_cfg.h
index 8798405776..e873abc32c 100644
--- a/src/include/device/pci_mmio_cfg.h
+++ b/src/include/device/pci_mmio_cfg.h
@@ -105,6 +105,8 @@ uint32_t *pci_mmio_config32_addr(pci_devfn_t dev, uint16_t reg)
 #error "CONFIG_MMCONF_LENGTH does not correspond with CONFIG_MMCONF_BUS_NUMBER!"
 #endif
 
+#endif
+
 /* Avoid name collisions as different stages have different signature
  * for these functions. The _s_ stands for simple, fundamental IO or
  * MMIO variant.
@@ -146,6 +148,4 @@ void pci_s_write_config32(pci_devfn_t dev, uint16_t reg, uint32_t value)
 	pci_mmio_write_config32(dev, reg, value);
 }
 
-#endif
-
 #endif /* _PCI_MMIO_CFG_H */