diff --git a/tester/vcard_tester.c b/tester/vcard_tester.c
index 2d25ecffa..f5d2d72eb 100644
--- a/tester/vcard_tester.c
+++ b/tester/vcard_tester.c
@@ -64,9 +64,9 @@ static void linphone_vcard_import_a_lot_of_friends_test(void) {
 	clock_t start, end;
 	double elapsed = 0;
 	const MSList *friends = NULL;
-	FILE    *infile;
-	char    *buffer;
-	long    numbytes;
+	FILE    *infile = NULL;
+	char    *buffer = NULL;
+	long    numbytes = 0;
 
 	start = clock();
 	linphone_friend_list_import_friends_from_vcard4_file(lfl, import_filepath);
@@ -82,17 +82,21 @@ static void linphone_vcard_import_a_lot_of_friends_test(void) {
 #endif
 	
 	lfl = linphone_core_create_friend_list(manager->lc);
-	infile = fopen(import_filepath, "r");
-	fseek(infile, 0L, SEEK_END);
-	numbytes = ftell(infile);
-	fseek(infile, 0L, SEEK_SET);
-	buffer = (char*)ms_malloc(numbytes * sizeof(char));
-	numbytes = fread(buffer, sizeof(char), numbytes, infile);
-	fclose(infile);
+	infile = fopen(import_filepath, "rb");
+	BC_ASSERT_PTR_NOT_NULL(infile);
+	if (infile) {
+		fseek(infile, 0L, SEEK_END);
+		numbytes = ftell(infile);
+		fseek(infile, 0L, SEEK_SET);
+		buffer = (char*)ms_malloc(numbytes * sizeof(char));
+		numbytes = fread(buffer, sizeof(char), numbytes, infile);
+		fclose(infile);
 	
-	start = clock();
-	linphone_friend_list_import_friends_from_vcard4_buffer(lfl, buffer);
-	end = clock();
+		start = clock();
+		linphone_friend_list_import_friends_from_vcard4_buffer(lfl, buffer);
+		end = clock();
+		ms_free(buffer);
+	}
 	
 	friends = linphone_friend_list_get_friends(lfl);
 	BC_ASSERT_EQUAL(ms_list_size(friends), 482, int, "%i"); // Thousand vcards contains 482 contacts with a SIP URI
@@ -103,7 +107,6 @@ static void linphone_vcard_import_a_lot_of_friends_test(void) {
 	BC_ASSERT_TRUE(elapsed < 1500000); // 1.5 seconds
 #endif
 	
-	ms_free(buffer);
 	linphone_friend_list_unref(lfl);
 	
 	ms_free(import_filepath);