diff --git a/scripts/prebuild.sh b/scripts/prebuild.sh
old mode 100644
new mode 100755
index 31acfa82c..d24076666
--- a/scripts/prebuild.sh
+++ b/scripts/prebuild.sh
@@ -2,5 +2,5 @@
 KEYS=../lib/external_api_keys.dart
 if ! test -f "$KEYS"; then
     echo 'prebuild.sh: creating template lib/external_api_keys.dart file'
-    echo 'const kChangeNowApiKey = "";' > $KEYS
+    printf 'const kChangeNowApiKey = "";\nconst kSimpleSwapApiKey = "";' > $KEYS
 fi
diff --git a/scripts/setup.sh b/scripts/setup.sh
index f65e6640f..5525d7814 100644
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -29,7 +29,7 @@ git submodule update --init --recursive
 KEYS="$HOME/projects/stack_wallet/lib/external_api_keys.dart"
 if ! test -f "$KEYS"; then
     echo 'prebuild.sh: creating template lib/external_api_keys.dart file'
-    echo 'const kChangeNowApiKey = "";' > $KEYS
+    printf 'const kChangeNowApiKey = "";\nconst kSimpleSwapApiKey = "";' > $KEYS
 fi
 
 #install stack wallet dependencies