diff --git a/arch/Makefile b/arch/Makefile
index a4af85e..25ac124 100644
--- a/arch/Makefile
+++ b/arch/Makefile
@@ -45,7 +45,7 @@ kernel: $(OBJS)
 	$(AS) $< -o $@
 
 %.asm.cpp.o: %.asm.cpp
-	nasm -felf -o $@ $<
+	nasm -felf32 -o $@ $<
 
 %.asm.cpp: %.asm
 	cpp -P $< $@
diff --git a/modules/dummy.asm b/modules/dummy.asm
index acd421e..3e0017c 100644
--- a/modules/dummy.asm
+++ b/modules/dummy.asm
@@ -1,3 +1,5 @@
+[BITS 32]
+
 main:
     mov eax, 512
     int 0x80