diff --git a/reactos/hal/halx86/generic/legacy/bus/pcibus.c b/reactos/hal/halx86/generic/legacy/bus/pcibus.c
index 989028e9331..8169fb19deb 100644
--- a/reactos/hal/halx86/generic/legacy/bus/pcibus.c
+++ b/reactos/hal/halx86/generic/legacy/bus/pcibus.c
@@ -753,7 +753,9 @@ HalpAssignPCISlotResources(IN PBUS_HANDLER BusHandler,
     }
 
     /* Interrupt resource */
-    if (0 != PciConfig.u.type0.InterruptLine)
+    if (0 != PciConfig.u.type0.InterruptPin &&
+        0 != PciConfig.u.type0.InterruptLine &&
+        0xFF != PciConfig.u.type0.InterruptLine)
         ResourceCount++;
 
     /* Allocate output buffer and initialize */
@@ -806,7 +808,9 @@ HalpAssignPCISlotResources(IN PBUS_HANDLER BusHandler,
         }
     }
 
-    if (0 != PciConfig.u.type0.InterruptLine)
+    if (0 != PciConfig.u.type0.InterruptPin &&
+        0 != PciConfig.u.type0.InterruptLine &&
+        0xFF != PciConfig.u.type0.InterruptLine)
     {
         Descriptor->Type = CmResourceTypeInterrupt;
         Descriptor->ShareDisposition = CmResourceShareShared;          /* FIXME Just a guess */
diff --git a/reactos/hal/halx86/generic/legacy/bussupp.c b/reactos/hal/halx86/generic/legacy/bussupp.c
index 1758f85dab6..078a05980a7 100644
--- a/reactos/hal/halx86/generic/legacy/bussupp.c
+++ b/reactos/hal/halx86/generic/legacy/bussupp.c
@@ -785,7 +785,9 @@ HalpDebugPciDumpBus(IN ULONG i,
     if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x200) DbgPrint(" medium devsel,");
     if ((PciData->Status & PCI_STATUS_DEVSEL) == 0x400) DbgPrint(" fast devsel,");
     DbgPrint(" latency %d", PciData->LatencyTimer);
-    if (PciData->u.type0.InterruptLine) DbgPrint(", IRQ %02d", PciData->u.type0.InterruptLine);
+    if (PciData->u.type0.InterruptPin != 0 &&
+        PciData->u.type0.InterruptLine != 0 &&
+        PciData->u.type0.InterruptLine != 0xFF) DbgPrint(", IRQ %02d", PciData->u.type0.InterruptLine);
     DbgPrint("\n");
     
     /* Scan addresses */