diff --git a/.gitignore b/.gitignore
index f30684a..cebbcdf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1 @@
 /build-*/
-/scheme-core/flisp.boot.bak
-/scheme-core/flisp.boot.new
diff --git a/scripts/build.sh b/scripts/build.sh
index 79ba40a..a8ca10f 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -96,8 +96,9 @@ cd ../scheme-core
 echo "Entering directory '$PWD'"
 echo "Creating stage 0 boot file..."
 set -x
-../"$builddir"/upscheme mkboot0.scm system.scm compiler.scm >boot_image.h.new
-mv boot_image.h.new ../scheme-boot/boot_image.h
+../"$builddir"/upscheme mkboot0.scm system.scm compiler.scm \
+   >../scheme-boot/boot_image.h.new
+mv ../scheme-boot/boot_image.h.new ../scheme-boot/boot_image.h
 
 { set +x; } 2>/dev/null
 cd ../"$builddir"
@@ -111,8 +112,9 @@ cd ../scheme-core
 echo "Entering directory '$PWD'"
 echo "Creating stage 1 boot file..."
 set -x
-../"$builddir"/upscheme mkboot1.scm >boot_image.h.new
-mv boot_image.h.new ../scheme-boot/boot_image.h
+../"$builddir"/upscheme mkboot1.scm \
+   >../scheme-boot/boot_image.h.new
+mv ../scheme-boot/boot_image.h.new ../scheme-boot/boot_image.h
 
 { set +x; } 2>/dev/null
 cd ../"$builddir"