diff --git a/drivers/staging/dgap/Kconfig b/drivers/staging/dgap/Kconfig
index 31f1d7533eecb2880927f42a11fc4cf158aa8e5d..3bbe9e122365eb0353d427d5c18f055928267b45 100644
--- a/drivers/staging/dgap/Kconfig
+++ b/drivers/staging/dgap/Kconfig
@@ -1,6 +1,6 @@
 config DGAP
        tristate "Digi EPCA PCI products"
        default n
-       depends on TTY
+       depends on TTY && HAS_IOMEM
        ---help---
        Driver for the Digi International EPCA PCI based product line