diff --git a/tests/libtest/lib1511.c b/tests/libtest/lib1511.c
index 9a84c8d509..5062cae32a 100644
--- a/tests/libtest/lib1511.c
+++ b/tests/libtest/lib1511.c
@@ -37,7 +37,7 @@ static CURLcode test_lib1511(char *URL)
 
   easy_setopt(curl, CURLOPT_URL, URL);
   easy_setopt(curl, CURLOPT_HEADER, 1L);
-  easy_setopt(curl, CURLOPT_TIMECONDITION, (long)CURL_TIMECOND_IFMODSINCE);
+  easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
 
   /* TIMEVALUE in the future */
   easy_setopt(curl, CURLOPT_TIMEVALUE, 1566210680L);
diff --git a/tests/libtest/lib1593.c b/tests/libtest/lib1593.c
index 803e410b90..44d8bf1e1d 100644
--- a/tests/libtest/lib1593.c
+++ b/tests/libtest/lib1593.c
@@ -40,7 +40,7 @@ static CURLcode test_lib1593(char *URL)
   easy_init(curl);
 
   easy_setopt(curl, CURLOPT_URL, URL);
-  easy_setopt(curl, CURLOPT_TIMECONDITION, (long)CURL_TIMECOND_IFMODSINCE);
+  easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
   /* Some TIMEVALUE; it doesn't matter. */
   easy_setopt(curl, CURLOPT_TIMEVALUE, 1566210680L);