diff --git a/envsetup.sh b/envsetup.sh
index 946d770..8fad5fb 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -552,12 +552,12 @@
 complete -F _lunch lunch
 
 # Configures the build to build unbundled apps.
-# Run tapas with one ore more app names (from LOCAL_PACKAGE_NAME)
+# Run tapas with one or more app names (from LOCAL_PACKAGE_NAME)
 function tapas()
 {
-    local arch=$(echo -n $(echo $* | xargs -n 1 echo | \grep -E '^(arm|x86|mips|armv5)$'))
-    local variant=$(echo -n $(echo $* | xargs -n 1 echo | \grep -E '^(user|userdebug|eng)$'))
-    local apps=$(echo -n $(echo $* | xargs -n 1 echo | \grep -E -v '^(user|userdebug|eng|arm|x86|mips|armv5)$'))
+    local arch="$(echo $* | xargs -n 1 echo | \grep -E '^(arm|x86|mips|armv5)$' | xargs)"
+    local variant="$(echo $* | xargs -n 1 echo | \grep -E '^(user|userdebug|eng)$' | xargs)"
+    local apps="$(echo $* | xargs -n 1 echo | \grep -E -v '^(user|userdebug|eng|arm|x86|mips|armv5)$' | xargs)"
 
     if [ $(echo $arch | wc -w) -gt 1 ]; then
         echo "tapas: Error: Multiple build archs supplied: $arch"