diff --git a/http-push.c b/http-push.c
index f9e67cabd4..591e46ab26 100644
--- a/http-push.c
+++ b/http-push.c
@@ -195,7 +195,7 @@ static char *xml_entities(const char *s)
 static void curl_setup_http_get(CURL *curl, const char *url,
 		const char *custom_req)
 {
-	curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
+	curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 	curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, custom_req);
 	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_null);
diff --git a/http.c b/http.c
index 3c029cf894..cce2ea7287 100644
--- a/http.c
+++ b/http.c
@@ -1019,13 +1019,13 @@ static CURL *get_curl_handle(void)
 		die("curl_easy_init failed");
 
 	if (!curl_ssl_verify) {
-		curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
-		curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
+		curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0L);
+		curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0L);
 	} else {
 		/* Verify authenticity of the peer's certificate */
-		curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
+		curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1L);
 		/* The name in the cert must match whom we tried to connect */
-		curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
+		curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2L);
 	}
 
     if (curl_http_version) {
@@ -1117,7 +1117,7 @@ static CURL *get_curl_handle(void)
 				 curl_low_speed_time);
 	}
 
-	curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20);
+	curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20L);
 	curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
 
 #ifdef GIT_CURL_HAVE_CURLOPT_PROTOCOLS_STR
@@ -1151,7 +1151,7 @@ static CURL *get_curl_handle(void)
 		user_agent ? user_agent : git_user_agent());
 
 	if (curl_ftp_no_epsv)
-		curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
+		curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0L);
 
 	if (curl_ssl_try)
 		curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
@@ -1254,7 +1254,7 @@ static CURL *get_curl_handle(void)
 	}
 	init_curl_proxy_auth(result);
 
-	curl_easy_setopt(result, CURLOPT_TCP_KEEPALIVE, 1);
+	curl_easy_setopt(result, CURLOPT_TCP_KEEPALIVE, 1L);
 
 	if (curl_tcp_keepidle > -1)
 		curl_easy_setopt(result, CURLOPT_TCP_KEEPIDLE,
diff --git a/remote-curl.c b/remote-curl.c
index 590b228f67..6183772191 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -877,12 +877,12 @@ static int probe_rpc(struct rpc_state *rpc, struct slot_results *results)
 	headers = curl_slist_append(headers, rpc->hdr_content_type);
 	headers = curl_slist_append(headers, rpc->hdr_accept);
 
-	curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
-	curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
+	curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0L);
+	curl_easy_setopt(slot->curl, CURLOPT_POST, 1L);
 	curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
 	curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL);
 	curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000");
-	curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4);
+	curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4L);
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
 	curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &buf);