diff --git a/pkg/cmd/cmd.go b/pkg/cmd/cmd.go
index 4bb42ab..d64f98c 100644
--- a/pkg/cmd/cmd.go
+++ b/pkg/cmd/cmd.go
@@ -47,13 +47,11 @@ var runCmd = &cobra.Command{
 			fmt.Println()
 		}
 
-		// Nuclei args flag
 		if nucleiArgs == "" {
 			log.Fatal("Nuclei arguments are required")
 			os.Exit(1)
 		}
 
-		// Targets flag
 		if targets == "" && target == "" {
 			log.Fatal("Either a target or a list of targets is required")
 			os.Exit(1)
@@ -66,12 +64,12 @@ var runCmd = &cobra.Command{
 			batches := helpers.SplitSlice(urls, batchSize)
 			log.Println("Splitting targets into", len(batches), "individual executions")
 			log.Println("Running with " + fmt.Sprint(threads) + " threads")
-			core.ExecuteScans(batches, output, functionName, nucleiArgs, threads, silent)
+			core.ExecuteScans(batches, output, functionName, nucleiArgs, threads, silent, region)
 		} else {
 			log.Println("Running nuclei against the target", target)
 			log.Println("Running with " + fmt.Sprint(threads) + " threads")
 			batches := [][]string{{target}}
-			core.ExecuteScans(batches, output, functionName, nucleiArgs, threads, silent)
+			core.ExecuteScans(batches, output, functionName, nucleiArgs, threads, silent, region)
 		}
 	},
 }
@@ -108,13 +106,15 @@ func init() {
 	// Region flag
 	runCmd.Flags().StringVarP(&region, "region", "r", "", "AWS region to run nuclei")
 	if region == "" {
-		region, ok := os.LookupEnv("AWS_REGION")
+		var ok bool // Declare ok here to avoid shadowing
+		region, ok = os.LookupEnv("AWS_REGION") // Removed := to modify the existing region variable
 		if !ok {
 			runCmd.MarkFlagRequired("region")
 		} else {
 			runCmd.Flags().Set("region", region)
 		}
 	}
+
 	// Function name flag
 	runCmd.Flags().StringVarP(&functionName, "function-name", "f", "", "AWS Lambda function name")
 	if functionName == "" {
diff --git a/pkg/core/core.go b/pkg/core/core.go
index 3de16e4..db82083 100644
--- a/pkg/core/core.go
+++ b/pkg/core/core.go
@@ -10,7 +10,7 @@ import (
 	"github.com/DevSecOpsDocs/nuclearpond/pkg/lambda"
 )
 
-func ExecuteScans(batches [][]string, output string, lambdaName string, nucleiArgs string, threads int, silent bool) {
+func ExecuteScans(batches [][]string, output string, lambdaName string, nucleiArgs string, threads int, silent bool, region string) {
 	// Get start time
 	start := time.Now()
 
@@ -47,7 +47,7 @@ func ExecuteScans(batches [][]string, output string, lambdaName string, nucleiAr
 			Output:  output,
 		}
 		tasks <- func() {
-			lambda.InvokeLambdas(lambdaInvoke, lambdaName, output)
+			lambda.InvokeLambdas(lambdaInvoke, lambdaName, output, region)
 		}
 	}
 
@@ -59,3 +59,4 @@ func ExecuteScans(batches [][]string, output string, lambdaName string, nucleiAr
 		log.Println("Completed all parallel operations, best of luck! Completed in", time.Since(start))
 	}
 }
+
diff --git a/pkg/lambda/lambda.go b/pkg/lambda/lambda.go
index b7b032a..bd7ed6f 100644
--- a/pkg/lambda/lambda.go
+++ b/pkg/lambda/lambda.go
@@ -20,7 +20,7 @@ type LambdaInvoke struct {
 }
 
 // Stage the lambda function for executing
-func InvokeLambdas(payload LambdaInvoke, lambda string, output string) {
+func InvokeLambdas(payload LambdaInvoke, lambda string, output string, region string) {
 	// Bug to fix another day
 	if payload.Targets[0] == "" {
 		return
@@ -33,7 +33,7 @@ func InvokeLambdas(payload LambdaInvoke, lambda string, output string) {
 	}
 
 	// invoke lambda function
-	response, err := invokeFunction(string(lambdaInvokeJson), lambda)
+	response, err := invokeFunction(string(lambdaInvokeJson), lambda, region)
 	if err != nil {
 		fmt.Println(err)
 	}
@@ -56,10 +56,10 @@ func InvokeLambdas(payload LambdaInvoke, lambda string, output string) {
 }
 
 // Execute a lambda function and return the response
-func invokeFunction(payload string, functionName string) (string, error) {
+func invokeFunction(payload string, functionName string, region string) (string, error) {
 	// Create a new session
 	sess, err := session.NewSession(&aws.Config{
-		Region: aws.String("us-east-1")},
+		Region: aws.String(region)}, // Using the passed region here
 	)
 
 	// Create a Lambda service client.
@@ -81,3 +81,4 @@ func invokeFunction(payload string, functionName string) (string, error) {
 	// Return the response
 	return string(result.Payload), nil
 }
+
diff --git a/pkg/server/scanner.go b/pkg/server/scanner.go
index 55506a6..1edc729 100644
--- a/pkg/server/scanner.go
+++ b/pkg/server/scanner.go
@@ -23,20 +23,19 @@ func backgroundScan(scanInput Request, scanId string) {
 	NucleiArgs := base64.StdEncoding.EncodeToString([]byte(scanInput.Args))
 	silent := true
 
-	// Fail if AWS_LAMBDA_FUNCTION_NAME and AWS_REGION are not set
 	functionName := os.Getenv("AWS_LAMBDA_FUNCTION_NAME")
 	regionName := os.Getenv("AWS_REGION")
 	dynamodbTable := os.Getenv("AWS_DYNAMODB_TABLE")
+
 	if functionName == "" || regionName == "" || dynamodbTable == "" {
-		log.Fatal("AWS_LAMBDA_FUNCTION_NAME is not set")
+		log.Fatal("Environment variables (AWS_LAMBDA_FUNCTION_NAME, AWS_REGION, AWS_DYNAMODB_TABLE) are not set.")
 	}
 
-	// Convert scanId to a valid DynamoDB key
 	requestId := strings.ReplaceAll(scanId, "-", "")
 
 	log.Println("Initiating scan with the id of ", scanId, "with", len(targets), "targets")
 	storeScanState(requestId, "running")
-	core.ExecuteScans(batches, output, functionName, NucleiArgs, threads, silent)
+	core.ExecuteScans(batches, output, functionName, NucleiArgs, threads, silent, regionName)
 	storeScanState(requestId, "completed")
 	log.Println("Scan", scanId, "completed")
 }