diff --git a/vmm/src/config.rs b/vmm/src/config.rs
index 4b7e4a8ff..d80e389f5 100644
--- a/vmm/src/config.rs
+++ b/vmm/src/config.rs
@@ -320,11 +320,6 @@ pub enum ValidationError {
     /// GPUDirect clique requires P2P DMA
     #[error("Device with x_nv_gpudirect_clique requires vfio_p2p_dma=on")]
     GpuDirectCliqueRequiresP2pDma,
-    // On a IOMMU segment but IOMMU not supported
-    #[error(
-        "Device is on an IOMMU PCI segment ({0}) but does not support being placed behind IOMMU"
-    )]
-    IommuNotSupportedOnSegment(u16),
     // Identifier is not unique
     #[error("Identifier {0} is not unique")]
     IdentifierNotUnique(String),