diff --git a/pkg/api/api_test.go b/pkg/api/api_test.go
index 260f9975..509214c2 100644
--- a/pkg/api/api_test.go
+++ b/pkg/api/api_test.go
@@ -207,7 +207,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				averageDelay: "100ms",
 				delayVariation: "10ms",
 				errorBody: '',
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -229,7 +229,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				averageDelay: "100ms",
 				delayVariation: "10ms",
 				errorBody: '',
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -246,7 +246,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				averageDelay: "100ms",
 				delayVariation: "10ms",
 				errorBody: '',
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -263,7 +263,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				averageDelay: "100ms",
 				delayVariation: "10ms",
 				errorBody: '',
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -283,6 +283,17 @@ func Test_JsPodDisruptor(t *testing.T) {
 			`,
 			expectError: true,
 		},
+		{
+			description: "inject HTTP Fault with exclude as a string",
+			script: `
+			const fault = {
+				exclude: "foo,bar",
+			}
+
+			d.injectHTTPFaults(fault, "1s")
+			`,
+			expectError: false,
+		},
 		{
 			description: "inject Grpc Fault with full arguments",
 			script: `
@@ -292,7 +303,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				statusMessage: '',
 				averageDelay: "100ms",
 				delayVariation: "10ms",
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -314,7 +325,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				statusMessage: '',
 				averageDelay: "100ms",
 				delayVariation: "10ms",
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -331,7 +342,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				statusMessage: '',
 				averageDelay: "100ms",
 				delayVariation: "10ms",
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
@@ -353,7 +364,7 @@ func Test_JsPodDisruptor(t *testing.T) {
 				statusMessage: '',
 				averageDelay: "100ms",
 				delayVariation: "10ms",
-				exclude: "",
+				exclude: [],
 				port: 80
 			}
 
diff --git a/pkg/api/convert.go b/pkg/api/convert.go
index ce8de925..95ddaeb3 100644
--- a/pkg/api/convert.go
+++ b/pkg/api/convert.go
@@ -3,6 +3,7 @@ package api
 import (
 	"fmt"
 	"reflect"
+	"strings"
 	"time"
 )
 
@@ -88,6 +89,18 @@ func convertMap(value interface{}, target interface{}) error {
 func convertSlice(value interface{}, target interface{}) error {
 	targetValue := reflect.ValueOf(target).Elem()
 
+	// Hack: Allow to convert a comma-separated string into a slice of strings.
+	// This block is to be removed in 1.0.
+	valueStr, isString := value.(string)
+	if isString && reflect.TypeOf(target).Elem().Elem().Kind() == reflect.String {
+		// TODO: Log warning.
+		var iSlice []interface{}
+		for _, item := range strings.Split(valueStr, ",") {
+			iSlice = append(iSlice, item)
+		}
+		value = iSlice
+	}
+
 	valueSlice, ok := value.([]interface{})
 	if !ok {
 		return fmt.Errorf("expected value []interface{} got %s", reflect.TypeOf(value))
diff --git a/pkg/disruptors/cmd_builders.go b/pkg/disruptors/cmd_builders.go
index 15108726..16744d61 100644
--- a/pkg/disruptors/cmd_builders.go
+++ b/pkg/disruptors/cmd_builders.go
@@ -2,6 +2,7 @@ package disruptors
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/grafana/xk6-disruptor/pkg/utils"
@@ -43,7 +44,7 @@ func buildGrpcFaultCmd(fault GrpcFault, duration time.Duration, options GrpcDisr
 	}
 
 	if len(fault.Exclude) > 0 {
-		cmd = append(cmd, "-x", fault.Exclude)
+		cmd = append(cmd, "-x", strings.Join(fault.Exclude, ","))
 	}
 
 	if options.ProxyPort != 0 {
@@ -93,7 +94,7 @@ func buildHTTPFaultCmd(fault HTTPFault, duration time.Duration, options HTTPDisr
 	}
 
 	if len(fault.Exclude) > 0 {
-		cmd = append(cmd, "-x", fault.Exclude)
+		cmd = append(cmd, "-x", strings.Join(fault.Exclude, ","))
 	}
 
 	if options.ProxyPort != 0 {
diff --git a/pkg/disruptors/pod_test.go b/pkg/disruptors/pod_test.go
index 8355f19e..00c6c9c8 100644
--- a/pkg/disruptors/pod_test.go
+++ b/pkg/disruptors/pod_test.go
@@ -138,7 +138,7 @@ func Test_PodHTTPFaultInjection(t *testing.T) {
 			expectError: false,
 			cmdError:    nil,
 			fault: HTTPFault{
-				Exclude: "/path1,/path2",
+				Exclude: []string{"/path1", "/path2"},
 			},
 			opts:     HTTPDisruptionOptions{},
 			duration: 60 * time.Second,
@@ -292,7 +292,7 @@ func Test_PodGrpcPFaultInjection(t *testing.T) {
 			},
 			targets: []string{"my-app-pod"},
 			fault: GrpcFault{
-				Exclude: "service1,service2",
+				Exclude: []string{"service1", "service2"},
 			},
 			opts:        GrpcDisruptionOptions{},
 			duration:    60 * time.Second,
diff --git a/pkg/disruptors/protocol.go b/pkg/disruptors/protocol.go
index e9061c63..1a36f8ab 100644
--- a/pkg/disruptors/protocol.go
+++ b/pkg/disruptors/protocol.go
@@ -45,8 +45,8 @@ type HTTPFault struct {
 	ErrorCode uint `js:"errorCode"`
 	// Body to be returned when an error is injected
 	ErrorBody string `js:"errorBody"`
-	// Comma-separated list of url paths to be excluded from disruptions
-	Exclude string
+	// List of url paths to be excluded from disruptions
+	Exclude []string `js:"exclude"`
 }
 
 // GrpcFault specifies a fault to be injected in grpc requests
@@ -64,5 +64,5 @@ type GrpcFault struct {
 	// Status message to be returned in requests selected to return an error
 	StatusMessage string `js:"statusMessage"`
 	// List of grpc services to be excluded from disruptions
-	Exclude string `js:"exclude"`
+	Exclude []string `js:"exclude"`
 }