diff --git a/apps/shell/Makefile.shell b/apps/shell/Makefile.shell
index 3be9ea3b8..2671d5cdc 100644
--- a/apps/shell/Makefile.shell
+++ b/apps/shell/Makefile.shell
@@ -1,11 +1,11 @@
 shell_src = shell.c serial-shell.c shell-reboot.c \
-             shell-vars.c shell-ps.c shell-rime.c shell-sendtest.c \
-             shell-blink.c shell-text.c shell-time.c \
-             shell-file.c shell-netfile.c shell-exec.c shell-run.c \
-             shell-rime-ping.c shell-rime-sniff.c shell-rime-netcmd.c \
-             #shell-rsh.c
+            shell-vars.c shell-ps.c shell-rime.c shell-sendtest.c \
+            shell-blink.c shell-text.c shell-time.c \
+            shell-file.c shell-netfile.c shell-run.c \
+            shell-rime-ping.c shell-rime-sniff.c shell-rime-netcmd.c \
+            #shell-rsh.c
 shell_dsc = shell-dsc.c
 
 ifeq ($(TARGET),sky)
-	shell_src += shell-sky.c
+	shell_src += shell-sky.c shell-exec.c
 endif