diff --git a/src/c-wrapper/api/c-content.cpp b/src/c-wrapper/api/c-content.cpp
index 8e135ecfa..211985bbb 100644
--- a/src/c-wrapper/api/c-content.cpp
+++ b/src/c-wrapper/api/c-content.cpp
@@ -91,7 +91,7 @@ void linphone_content_set_subtype(LinphoneContent *content, const char *subtype)
 }
 
 uint8_t * linphone_content_get_buffer(const LinphoneContent *content) {
-    return (uint8_t *)L_GET_CPP_PTR_FROM_C_OBJECT(content)->getBody().data();
+    return (uint8_t *)linphone_content_get_string_buffer(content);
 }
 
 void linphone_content_set_buffer(LinphoneContent *content, const uint8_t *buffer, size_t size) {
diff --git a/tester/eventapi_tester.c b/tester/eventapi_tester.c
index 2119f3500..66ae0f165 100644
--- a/tester/eventapi_tester.c
+++ b/tester/eventapi_tester.c
@@ -41,7 +41,7 @@ void linphone_notify_received(LinphoneCore *lc, LinphoneEvent *lev, const char *
 	if (!BC_ASSERT_PTR_NOT_NULL(content)) return;
 	if (!linphone_content_is_multipart(content) && (!ua ||  !strstr(ua, "flexisip"))) { /*disable check for full presence server support*/
 		/*hack to disable content checking for list notify */
-		BC_ASSERT_STRING_EQUAL(notify_content,(const char*)linphone_content_get_buffer(content));
+		BC_ASSERT_STRING_EQUAL((const char*)linphone_content_get_buffer(content),notify_content);
 	}
 	mgr=get_manager(lc);
 	mgr->stat.number_of_NotifyReceived++;