diff --git a/reactos/drivers/video/miniport/vbe/edid.c b/reactos/drivers/video/miniport/vbe/edid.c
index 133a8c57bb6..8215a19b53b 100644
--- a/reactos/drivers/video/miniport/vbe/edid.c
+++ b/reactos/drivers/video/miniport/vbe/edid.c
@@ -121,7 +121,7 @@ VBEReadEdidUsingSCI(
    VideoPortZeroMemory(&BiosRegisters, sizeof(BiosRegisters));
    BiosRegisters.Eax = VBE_DDC;
    BiosRegisters.Ebx = VBE_DDC_REPORT_CAPABILITIES;
-   BiosRegisters.Ecx = VBEDeviceExtension->CurrentChildIndex;
+   BiosRegisters.Ecx = ChildIndex;
    VBEDeviceExtension->Int10Interface.Int10CallBios(
       VBEDeviceExtension->Int10Interface.Context,
       &BiosRegisters);
@@ -137,7 +137,7 @@ VBEReadEdidUsingSCI(
    VideoPortZeroMemory(&BiosRegisters, sizeof(BiosRegisters));
    BiosRegisters.Eax = VBE_DDC;
    BiosRegisters.Ebx = VBE_DDC_BEGIN_SCL_SDA_CONTROL;
-   BiosRegisters.Ecx = VBEDeviceExtension->CurrentChildIndex;
+   BiosRegisters.Ecx = ChildIndex;
    VBEDeviceExtension->Int10Interface.Int10CallBios(
       VBEDeviceExtension->Int10Interface.Context,
       &BiosRegisters);