diff --git a/tests/libtest/lib503.c b/tests/libtest/lib503.c
index 126e257a6..f324b35d6 100644
--- a/tests/libtest/lib503.c
+++ b/tests/libtest/lib503.c
@@ -40,7 +40,10 @@ CURLcode test(char *URL)
     while(!done) {
       fd_set rd, wr, exc;
       int max_fd;
-      struct timeval interval={1,0};
+      struct timeval interval;
+
+      interval.tv_sec = 1;
+      interval.tv_usec = 0;
 
       while (res == CURLM_CALL_MULTI_PERFORM) {
         res = curl_multi_perform(m, &running);
diff --git a/tests/libtest/lib504.c b/tests/libtest/lib504.c
index 9eba0b764..0a9aff2cc 100644
--- a/tests/libtest/lib504.c
+++ b/tests/libtest/lib504.c
@@ -39,7 +39,10 @@ CURLcode test(char *URL)
   if(res && (res != CURLM_CALL_MULTI_PERFORM))
     return 1; /* major failure */
   do {
-    struct timeval interval={1,0};
+    struct timeval interval;
+
+    interval.tv_sec = 1;
+    interval.tv_usec = 0;
 
     fprintf(stderr, "curl_multi_perform()\n");