diff --git a/package/log4cxx/log4cxx.mk b/package/log4cxx/log4cxx.mk
index 2d8d57a612..4b85adbf92 100644
--- a/package/log4cxx/log4cxx.mk
+++ b/package/log4cxx/log4cxx.mk
@@ -23,10 +23,10 @@ LOG4CXX_DEPENDENCIES += boost
 endif
 
 ifeq ($(BR2_PACKAGE_LIBESMTP),y)
-LOG4CXX_CONF_OPTS += -DLOG4CXX_ENABLE_LIBESMTP=ON
+LOG4CXX_CONF_OPTS += -DLOG4CXX_ENABLE_ESMTP=ON
 LOG4CXX_DEPENDENCIES += libesmtp
 else
-LOG4CXX_CONF_OPTS += -DLOG4CXX_ENABLE_LIBESMTP=OFF
+LOG4CXX_CONF_OPTS += -DLOG4CXX_ENABLE_ESMTP=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_UNIXODBC),y)