diff --git a/reactos/hal/halx86/generic/usage.c b/reactos/hal/halx86/generic/usage.c
index 6bfbc8328aa..e2d967d8498 100644
--- a/reactos/hal/halx86/generic/usage.c
+++ b/reactos/hal/halx86/generic/usage.c
@@ -323,7 +323,7 @@ HalpReportResourceUsage(IN PUNICODE_STRING HalName,
         while (TRUE)
         {
             /* Check for valid vector number */
-            if (i < MAXIMUM_IDTVECTOR)
+            if (i <= MAXIMUM_IDTVECTOR)
             {
                 /* Check if this entry should be parsed */
                 if ((HalpIDTUsageFlags[i].Flags & FlagMatch))