diff --git a/reactos/base/services/svchost/netbios.c b/reactos/base/services/svchost/netbios.c
index 8537e61a66d..f2015d329ed 100644
--- a/reactos/base/services/svchost/netbios.c
+++ b/reactos/base/services/svchost/netbios.c
@@ -64,7 +64,7 @@ LanaFlagIsSet (
     DWORD i = Lana / 32;
 
     /* Clear the flag for this LANA */
-    return (i <= 8) ? LanaFlags[i] & (1 << (Lana - 32 * i)) : FALSE;
+    return (i <= 7) ? LanaFlags[i] & (1 << (Lana - 32 * i)) : FALSE;
 }
 
 VOID
@@ -76,7 +76,7 @@ SetLanaFlag (
     DWORD i = Lana / 32;
 
     /* Set the flag for this LANA */
-    if (i <= 8) LanaFlags[i] |= 1 << (Lana - 32 * i);
+    if (i <= 7) LanaFlags[i] |= 1 << (Lana - 32 * i);
 }
 
 VOID