diff --git a/scripts/awsvpcscleanup.sh b/scripts/awsvpcscleanup.sh
index f3250355..6c340d1c 100755
--- a/scripts/awsvpcscleanup.sh
+++ b/scripts/awsvpcscleanup.sh
@@ -47,6 +47,15 @@ route_tables=$(aws ec2 describe-route-tables \
     --output text | tr -d '\r' | tr '\n' ' ')
 for rt in $route_tables; do
     echo "Deleting route table: $rt"
+    # Check if this is the main route table
+    is_main=$(aws ec2 describe-route-tables \
+        --route-table-ids "$rt" \
+        --query "RouteTables[0].Associations[?Main==true]" \
+        --output text | tr -d '\r' | tr '\n' ' ')
+    if [ -n "$is_main" ]; then
+        echo "Skipping main route table: $rt"
+        continue
+    fi
     associations=$(aws ec2 describe-route-tables \
         --route-table-ids "$rt" \
         --query "RouteTables[0].Associations[].RouteTableAssociationId" \