diff --git a/script/compile-coffee b/script/compile-coffee
index d4a266265..298d9f53c 100755
--- a/script/compile-coffee
+++ b/script/compile-coffee
@@ -6,9 +6,7 @@ set -e
 # The Setup's environment ourselves. If this isn't done, things like the
 # node shim won't be able to find the stuff they need.
 
-if [ -e /opt/github/env.sh ]; then
-  source /opt/github/env.sh
-fi
+node --version > /dev/null 2>&1 || source /opt/github/env.sh
 
 INPUT_FILE="${1}"
 OUTPUT_FILE="${2}"
diff --git a/script/compile-cson b/script/compile-cson
index 4f4211087..7b4d4c430 100755
--- a/script/compile-cson
+++ b/script/compile-cson
@@ -6,9 +6,7 @@ set -e
 # The Setup's environment ourselves. If this isn't done, things like the
 # node shim won't be able to find the stuff they need.
 
-if [ -e /opt/github/env.sh ]; then
-  source /opt/github/env.sh
-fi
+node --version > /dev/null 2>&1 || source /opt/github/env.sh
 
 INPUT_FILE="${1}"
 OUTPUT_FILE="${2}"