diff --git a/Jamfile b/Jamfile
index 395586a57d..6d8c3f6f0d 100644
--- a/Jamfile
+++ b/Jamfile
@@ -22,7 +22,7 @@ if ! $(HAIKU_BOOTSTRAP_BUILD) {
 }
 
 # If enabled, make sure that OpenSSL is added to the image.
-if $(HAIKU_BUILD_FEATURE_OPENSSL_ENABLED) {
+if [ FIsBuildFeatureEnabled openssl ] {
 	AddHaikuImagePackages openssl ;
 }
 
diff --git a/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile b/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
index 5781724f4c..eeef1308be 100644
--- a/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
+++ b/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
@@ -31,7 +31,7 @@ local sources =
 
 AddResources IMAP : IMAP.rdef ;
 
-if $(HAIKU_BUILD_FEATURE_OPENSSL_ENABLED) {
+if [ FIsBuildFeatureEnabled openssl ] {
 	SubDirC++Flags -DUSE_SSL ;
 	SetupFeatureObjectsDir ssl ;
 } else {