diff --git a/stage23/protos/chainload.c b/stage23/protos/chainload.c
index d1fc5dbb..f76a1b21 100644
--- a/stage23/protos/chainload.c
+++ b/stage23/protos/chainload.c
@@ -19,7 +19,7 @@
 
 #if bios == 1
 
-__attribute__((section(".realmode")))
+__attribute__((noinline, section(".realmode")))
 static void spinup(uint8_t drive) {
     struct idtr real_mode_idt;
     real_mode_idt.limit = 0x3ff;
diff --git a/test/limine.cfg b/test/limine.cfg
index bfa3ad38..dc340159 100644
--- a/test/limine.cfg
+++ b/test/limine.cfg
@@ -49,6 +49,13 @@ COMMENT=Test EFI image chainloading.
 PROTOCOL=chainload
 IMAGE_PATH=boot:///EFI/BOOT/BOOTX64.EFI
 
+:BIOS Chainloading
+
+COMMENT=Test EFI image chainloading.
+
+PROTOCOL=chainload
+DRIVE=1
+
 :+Legacy
 
 COMMENT=Contains legacy entries.