diff --git a/include/curl/curl.h b/include/curl/curl.h
index 67f03503b7..36038494b3 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -2398,10 +2398,10 @@ enum CURL_TLSAUTH {
    can be bitwise ORed so that CURL_REDIR_POST_301 | CURL_REDIR_POST_302
    | CURL_REDIR_POST_303 == CURL_REDIR_POST_ALL */
 
-#define CURL_REDIR_GET_ALL  0
-#define CURL_REDIR_POST_301 1
-#define CURL_REDIR_POST_302 2
-#define CURL_REDIR_POST_303 4
+#define CURL_REDIR_GET_ALL  0L
+#define CURL_REDIR_POST_301 1L
+#define CURL_REDIR_POST_302 2L
+#define CURL_REDIR_POST_303 4L
 #define CURL_REDIR_POST_ALL \
     (CURL_REDIR_POST_301|CURL_REDIR_POST_302|CURL_REDIR_POST_303)
 
diff --git a/tests/libtest/lib1571.c b/tests/libtest/lib1571.c
index a4923e9196..622be2f643 100644
--- a/tests/libtest/lib1571.c
+++ b/tests/libtest/lib1571.c
@@ -50,7 +50,7 @@ static CURLcode test_lib1571(const char *URL)
     test_setopt(curl, CURLOPT_POSTFIELDS, "moo");
   }
   if(testnum == 1581) {
-    test_setopt(curl, CURLOPT_POSTREDIR, (long)CURL_REDIR_POST_301);
+    test_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_301);
   }
 
   test_setopt(curl, CURLOPT_CUSTOMREQUEST, "IGLOO");
diff --git a/tests/libtest/lib650.c b/tests/libtest/lib650.c
index 42fa5b822c..e758aabac0 100644
--- a/tests/libtest/lib650.c
+++ b/tests/libtest/lib650.c
@@ -187,7 +187,7 @@ static CURLcode test_lib650(const char *URL)
   test_setopt(curl, CURLOPT_VERBOSE, 1L);
 
   test_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
-  test_setopt(curl, CURLOPT_POSTREDIR, (long)CURL_REDIR_POST_301);
+  test_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_301);
 
   /* include headers in the output */
   test_setopt(curl, CURLOPT_HEADER, 1L);