diff --git a/scripts/build.sh b/scripts/build.sh
index 4e38b05..d9ccdf8 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -11,8 +11,6 @@ o_files="$o_files env_unix.o"
 o_files="$o_files equalhash.o"
 o_files="$o_files flisp.o"
 o_files="$o_files flmain.o"
-o_files="$o_files os_$os.o"
-o_files="$o_files os_unix.o"
 o_files="$o_files hashing.o"
 o_files="$o_files htable.o"
 o_files="$o_files int2str.o"
@@ -20,6 +18,8 @@ o_files="$o_files ios.o"
 o_files="$o_files iostream.o"
 o_files="$o_files libraries.o"
 o_files="$o_files lltinit.o"
+o_files="$o_files os_$os.o"
+o_files="$o_files os_unix.o"
 o_files="$o_files ptrhash.o"
 o_files="$o_files random.o"
 o_files="$o_files socket.o"
@@ -89,8 +89,6 @@ $CC $CFLAGS -c ../c/dump.c
 $CC $CFLAGS -c ../c/env_unix.c
 $CC $CFLAGS -c ../c/equalhash.c
 $CC $CFLAGS -c ../c/flisp.c
-$CC $CFLAGS -c ../c/os_"$os".c
-$CC $CFLAGS -c ../c/os_unix.c
 $CC $CFLAGS -c ../c/hashing.c
 $CC $CFLAGS -c ../c/htable.c
 $CC $CFLAGS -c ../c/int2str.c
@@ -98,6 +96,8 @@ $CC $CFLAGS -c ../c/ios.c
 $CC $CFLAGS -c ../c/iostream.c
 $CC $CFLAGS -c ../c/libraries.c
 $CC $CFLAGS -c ../c/lltinit.c
+$CC $CFLAGS -c ../c/os_"$os".c
+$CC $CFLAGS -c ../c/os_unix.c
 $CC $CFLAGS -c ../c/ptrhash.c
 $CC $CFLAGS -c ../c/random.c
 $CC $CFLAGS -c ../c/socket.c