diff --git a/scripts/generate_instrumentation_bootstrap.py b/scripts/generate_instrumentation_bootstrap.py
index eeca0079a6..9966cb7557 100755
--- a/scripts/generate_instrumentation_bootstrap.py
+++ b/scripts/generate_instrumentation_bootstrap.py
@@ -53,7 +53,7 @@
     "bootstrap_gen.py",
 )
 
-packages_to_ignore = "opentelemetry-instrumentation-aws-lambda"
+packages_to_ignore = ["opentelemetry-instrumentation-aws-lambda"]
 
 
 def main():