diff --git a/docs/index.md b/docs/index.md
index 3d9be49..79df017 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -27,7 +27,7 @@ terraform {
 }
 
 provider "coderd" {
-  url   = "coder.example.com"
+  url   = "https://coder.example.com"
   token = "****"
 }
 
diff --git a/examples/provider/provider.tf b/examples/provider/provider.tf
index fe3b9dc..d50d5e7 100644
--- a/examples/provider/provider.tf
+++ b/examples/provider/provider.tf
@@ -7,7 +7,7 @@ terraform {
 }
 
 provider "coderd" {
-  url   = "coder.example.com"
+  url   = "https://coder.example.com"
   token = "****"
 }
 
diff --git a/integration/integration.go b/integration/integration.go
index f2ed0dd..89b385d 100644
--- a/integration/integration.go
+++ b/integration/integration.go
@@ -95,7 +95,7 @@ func StartCoder(ctx context.Context, t *testing.T, name string, useLicense bool)
 			t.Logf("not ready yet: %s", err.Error())
 		}
 		return err == nil
-	}, 15*time.Second, time.Second, "coder failed to become ready in time")
+	}, 20*time.Second, time.Second, "coder failed to become ready in time")
 	_, err = client.CreateFirstUser(ctx, codersdk.CreateFirstUserRequest{
 		Email:    testEmail,
 		Username: testUsername,
diff --git a/internal/provider/provider.go b/internal/provider/provider.go
index b8b9fa7..b7cfe88 100644
--- a/internal/provider/provider.go
+++ b/internal/provider/provider.go
@@ -2,6 +2,7 @@ package provider
 
 import (
 	"context"
+	"fmt"
 	"net/url"
 	"os"
 	"strings"
@@ -101,7 +102,16 @@ func (p *CoderdProvider) Configure(ctx context.Context, req provider.ConfigureRe
 		data.Token = types.StringValue(tokenEnv)
 	}
 
-	url, err := url.Parse(data.URL.ValueString())
+	rawURL := data.URL.ValueString()
+	if !strings.HasPrefix(rawURL, "http://") && !strings.HasPrefix(rawURL, "https://") {
+		scheme := "https"
+		if strings.HasPrefix(rawURL, "localhost") {
+			scheme = "http"
+		}
+		rawURL = fmt.Sprintf("%s://%s", scheme, rawURL)
+	}
+
+	url, err := url.Parse(rawURL)
 	if err != nil {
 		resp.Diagnostics.AddError("url", "url is not a valid URL: "+err.Error())
 		return