diff --git a/build/build-iso.sh b/build/build-iso.sh
index e5132dd2..5e7199d6 100755
--- a/build/build-iso.sh
+++ b/build/build-iso.sh
@@ -42,7 +42,7 @@ umount_tempdisk() {
 
 set -e
 echo "Building ZealBooter..."
-( cd ../zealbooter && make distclean all )
+( cd ../zealbooter && make distclean all || echo "ERROR: ZealBooter build failed !")
 set +e
 
 echo "Making temp vdisk, running auto-install ..."
diff --git a/zealbooter/GNUmakefile b/zealbooter/GNUmakefile
index 96e01426..f724f61a 100644
--- a/zealbooter/GNUmakefile
+++ b/zealbooter/GNUmakefile
@@ -83,7 +83,7 @@ override HEADER_DEPS := $(CFILES:.c=.d) $(ASFILES:.S=.d)
 all: $(KERNEL)
 
 limine.h:
-	curl -f https://raw.githubusercontent.com/limine-bootloader/limine/trunk/limine.h -o $@ || cp ../build/limine/limine.h limine.h
+	curl https://raw.githubusercontent.com/limine-bootloader/limine/trunk/limine.h -o $@ || cp ../build/limine/limine.h limine.h || echo "ERROR: limine.h not found! Cannot build ZealBooter. "
 
 # Link rules for the final kernel executable.
 $(KERNEL): $(OBJ)