diff --git a/c/src/lib/librdbg/i386/excep.c b/c/src/lib/librdbg/i386/excep.c
index 5ca1fd8df6..497c804e70 100644
--- a/c/src/lib/librdbg/i386/excep.c
+++ b/c/src/lib/librdbg/i386/excep.c
@@ -157,7 +157,7 @@ BreakPointExcHdl(CPU_Exception_frame *ctx)
     justSaveContext = 0;
   }
   else {
-    if (ctx->idtIndex != DEBUG){
+    if (ctx->idtIndex != I386_EXCEPTION_DEBUG){
       NbSerializedCtx++;
       rtems_semaphore_obtain(serializeSemId, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
       NbSerializedCtx--;
diff --git a/c/src/librdbg/src/i386/excep.c b/c/src/librdbg/src/i386/excep.c
index 5ca1fd8df6..497c804e70 100644
--- a/c/src/librdbg/src/i386/excep.c
+++ b/c/src/librdbg/src/i386/excep.c
@@ -157,7 +157,7 @@ BreakPointExcHdl(CPU_Exception_frame *ctx)
     justSaveContext = 0;
   }
   else {
-    if (ctx->idtIndex != DEBUG){
+    if (ctx->idtIndex != I386_EXCEPTION_DEBUG){
       NbSerializedCtx++;
       rtems_semaphore_obtain(serializeSemId, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
       NbSerializedCtx--;