diff --git a/kernel/Makefile b/kernel/Makefile
index 2b581ea2..68261f40 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -96,7 +96,7 @@ $(ARCHDIR)/crtbegin.o $(ARCHDIR)/crtend.o:
 	$(CC) -MD -c $< -o $(BUILDDIR)/$@ $(CFLAGS)
  
 .psf.o:
-	objcopy -O elf64-x86-64 -B i386 -I binary $< $(BUILDDIR)/$@
+	objcopy -O $(ELF_FORMAT) -B i386 -I binary $< $(BUILDDIR)/$@
 
 always:
 	mkdir -p $(BUILDDIR)/$(ARCHDIR)
diff --git a/kernel/arch/i386/make.config b/kernel/arch/i386/make.config
index fa74f25b..f50633b4 100644
--- a/kernel/arch/i386/make.config
+++ b/kernel/arch/i386/make.config
@@ -3,6 +3,8 @@ KERNEL_ARCH_CPPFLAGS=
 KERNEL_ARCH_LDFLAGS=
 KERNEL_ARCH_LIBS=
  
+ELF_FORMAT=elf32-i386
+
 KERNEL_ARCH_OBJS=		\
 $(ARCHDIR)/boot.o		\
 $(ARCHDIR)/IDT.o		\
diff --git a/kernel/arch/x86_64/make.config b/kernel/arch/x86_64/make.config
index e79262b0..a5d2ceec 100644
--- a/kernel/arch/x86_64/make.config
+++ b/kernel/arch/x86_64/make.config
@@ -3,6 +3,8 @@ KERNEL_ARCH_CPPFLAGS=
 KERNEL_ARCH_LDFLAGS=-z max-page-size=4096
 KERNEL_ARCH_LIBS=
  
+ELF_FORMAT=elf64-x86-64
+
 KERNEL_ARCH_OBJS=		\
 $(ARCHDIR)/boot.o		\
 $(ARCHDIR)/IDT.o		\