diff --git a/scripts/prebuild.ps1 b/scripts/prebuild.ps1
index 80a6991b7..04b68bc35 100644
--- a/scripts/prebuild.ps1
+++ b/scripts/prebuild.ps1
@@ -2,7 +2,7 @@
 $KEYS = "..\lib\external_api_keys.dart"
 if (-not (Test-Path $KEYS)) {
     Write-Host "prebuild.ps1: creating template lib/external_api_keys.dart file"
-    "const kChangeNowApiKey = '';" + "`nconst kSimpleSwapApiKey = '';" | Out-File $KEYS -Encoding UTF8
+    "const kChangeNowApiKey = '';" + "`nconst kSimpleSwapApiKey = '';" + "`nconst kNanswapApiKey = '';" + "`nconst kNanoSwapRpcApiKey = '';" | Out-File $KEYS -Encoding UTF8
 }
 
 # Create template wallet test parameter files if they don't already exist
diff --git a/scripts/prebuild.sh b/scripts/prebuild.sh
index 77d65b253..6c50fbefd 100755
--- a/scripts/prebuild.sh
+++ b/scripts/prebuild.sh
@@ -4,7 +4,7 @@
 KEYS=../lib/external_api_keys.dart
 if ! test -f "$KEYS"; then
     echo 'prebuild.sh: creating template lib/external_api_keys.dart file'
-    printf 'const kChangeNowApiKey = "";\nconst kSimpleSwapApiKey = "";\n' > $KEYS
+    printf 'const kChangeNowApiKey = "";\nconst kSimpleSwapApiKey = "";\nconst kNanswapApiKey = "";\nconst kNanoSwapRpcApiKey = "";\n' > $KEYS
 fi
 
 # Create template wallet test parameter files if they don't already exist