diff --git a/htdocs/comm/mailing/card.php b/htdocs/comm/mailing/card.php
index e59389a87b7..2372f24a929 100644
--- a/htdocs/comm/mailing/card.php
+++ b/htdocs/comm/mailing/card.php
@@ -227,13 +227,13 @@ if (empty($reshook)) {
 						$substitutionarray['__UNSUBSCRIBE_URL__'] = DOL_MAIN_URL_ROOT.'/public/emailing/mailing-unsubscribe.php?tag='.urlencode($obj->tag).'&unsuscrib=1&securitykey='.urlencode($conf->global->MAILING_EMAIL_UNSUBSCRIBE_KEY).'&email='.urlencode($obj->email).'&mtid='.$obj->rowid;
 
 						$onlinepaymentenabled = 0;
-						if (!empty($conf->paypal->enabled)) {
+						if (isModEnabled('paypal')) {
 							$onlinepaymentenabled++;
 						}
-						if (!empty($conf->paybox->enabled)) {
+						if (isModEnabled('paybox')) {
 							$onlinepaymentenabled++;
 						}
-						if (!empty($conf->stripe->enabled)) {
+						if (isModEnabled('stripe')) {
 							$onlinepaymentenabled++;
 						}
 						if ($onlinepaymentenabled && !empty($conf->global->PAYMENT_SECURITY_TOKEN)) {
@@ -263,7 +263,7 @@ if (empty($reshook)) {
 							$substitutionarray['__PUBLICLINK_NEWMEMBERFORM__'] = '<a target="_blank" rel="noopener noreferrer" href="'.DOL_MAIN_URL_ROOT.'/public/members/new.php'.((isModEnabled('multicompany')) ? '?entity='.$conf->entity : '').'">'.$langs->trans('BlankSubscriptionForm'). '</a>';
 						}
 						/* For backward compatibility, deprecated */
-						if (!empty($conf->paypal->enabled) && !empty($conf->global->PAYPAL_SECURITY_TOKEN)) {
+						if (isModEnabled('paypal') && !empty($conf->global->PAYPAL_SECURITY_TOKEN)) {
 							$substitutionarray['__SECUREKEYPAYPAL__'] = dol_hash($conf->global->PAYPAL_SECURITY_TOKEN, 2);
 
 							if (empty($conf->global->PAYPAL_SECURITY_TOKEN_UNIQUE)) {
diff --git a/htdocs/compta/facture/card.php b/htdocs/compta/facture/card.php
index 0fe82b9e7f1..1465b60b2f6 100644
--- a/htdocs/compta/facture/card.php
+++ b/htdocs/compta/facture/card.php
@@ -5802,7 +5802,7 @@ if ($action == 'create') {
 
 
 		// Show online payment link
-		$useonlinepayment = (!empty($conf->paypal->enabled) || !empty($conf->stripe->enabled) || !empty($conf->paybox->enabled));
+		$useonlinepayment = (isModEnabled('paypal') || isModEnabled('stripe') || isModEnabled('paybox'));
 
 		if ($object->statut != Facture::STATUS_DRAFT && $useonlinepayment) {
 			print '<br><!-- Link to pay -->'."\n";
diff --git a/htdocs/core/class/html.formmail.class.php b/htdocs/core/class/html.formmail.class.php
index a2abdbb7cc6..ad25db01fa6 100644
--- a/htdocs/core/class/html.formmail.class.php
+++ b/htdocs/core/class/html.formmail.class.php
@@ -1619,13 +1619,13 @@ class FormMail extends Form
 			//,'__PERSONALIZED__' => 'Personalized'	// Hidden because not used yet in mass emailing
 
 			$onlinepaymentenabled = 0;
-			if (!empty($conf->paypal->enabled)) {
+			if (isModEnabled('paypal')) {
 				$onlinepaymentenabled++;
 			}
-			if (!empty($conf->paybox->enabled)) {
+			if (isModEnabled('paybox')) {
 				$onlinepaymentenabled++;
 			}
-			if (!empty($conf->stripe->enabled)) {
+			if (isModEnabled('stripe')) {
 				$onlinepaymentenabled++;
 			}
 			if ($onlinepaymentenabled && !empty($conf->global->PAYMENT_SECURITY_TOKEN)) {
diff --git a/htdocs/core/lib/oauth.lib.php b/htdocs/core/lib/oauth.lib.php
index d48775fe84e..83359ef1c65 100644
--- a/htdocs/core/lib/oauth.lib.php
+++ b/htdocs/core/lib/oauth.lib.php
@@ -27,7 +27,7 @@
 $supportedoauth2array = array(
 	'OAUTH_GOOGLE_NAME'=>array('callbackfile' => 'google', 'picto' => 'google', 'urlforapp' => 'OAUTH_GOOGLE_DESC', 'name'=>'Google', 'urlforcredentials'=>'https://console.developers.google.com/', 'availablescopes'=> 'userinfo_email,userinfo_profile,openid,email,profile,cloud_print,admin_directory_user,gmail_full'),
 );
-if (!empty($conf->stripe->enabled)) {
+if (isModEnabled('stripe')) {
 	$supportedoauth2array['OAUTH_STRIPE_TEST_NAME'] = array('callbackfile' => 'stripetest', 'picto' => 'stripe', 'urlforapp' => '', 'name'=>'StripeTest', 'urlforcredentials'=>'', 'availablescopes'=>'read_write');
 	$supportedoauth2array['OAUTH_STRIPE_LIVE_NAME'] = array('callbackfile' => 'stripelive', 'picto' => 'stripe', 'urlforapp' => '', 'name'=>'StripeLive', 'urlforcredentials'=>'', 'availablescopes'=>'read_write');
 }
diff --git a/htdocs/core/lib/payments.lib.php b/htdocs/core/lib/payments.lib.php
index 19a251d1b38..44691f7c2c4 100644
--- a/htdocs/core/lib/payments.lib.php
+++ b/htdocs/core/lib/payments.lib.php
@@ -150,15 +150,15 @@ function getValidOnlinePaymentMethods($paymentmethod = '')
 
 	$validpaymentmethod = array();
 
-	if ((empty($paymentmethod) || $paymentmethod == 'paypal') && !empty($conf->paypal->enabled)) {
+	if ((empty($paymentmethod) || $paymentmethod == 'paypal') && isModEnabled('paypal')) {
 		$langs->load("paypal");
 		$validpaymentmethod['paypal'] = 'valid';
 	}
-	if ((empty($paymentmethod) || $paymentmethod == 'paybox') && !empty($conf->paybox->enabled)) {
+	if ((empty($paymentmethod) || $paymentmethod == 'paybox') && isModEnabled('paybox')) {
 		$langs->load("paybox");
 		$validpaymentmethod['paybox'] = 'valid';
 	}
-	if ((empty($paymentmethod) || $paymentmethod == 'stripe') && !empty($conf->stripe->enabled)) {
+	if ((empty($paymentmethod) || $paymentmethod == 'stripe') && isModEnabled('stripe')) {
 		$langs->load("stripe");
 		$validpaymentmethod['stripe'] = 'valid';
 	}