diff --git a/sysmodules/rosalina/source/gdb/hio.c b/sysmodules/rosalina/source/gdb/hio.c
index e8d33a4..31b1f89 100644
--- a/sysmodules/rosalina/source/gdb/hio.c
+++ b/sysmodules/rosalina/source/gdb/hio.c
@@ -114,7 +114,7 @@ GDB_DECLARE_HANDLER(HioReply)
 
         if (*pos != 0)
         {
-            if (*pos == 'C')
+            if (*pos != 'C')
                 return GDB_ReplyErrno(ctx, EILSEQ);
 
             ctx->currentHioRequest.ctrlC = true;