diff --git a/lib/connect.c b/lib/connect.c
index 1875334d6..b413db843 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -980,7 +980,7 @@ CURLcode Curl_is_connected(struct Curl_easy *data,
         char buffer[STRERROR_LEN];
         Curl_printable_address(conn->tempaddr[i], ipaddress,
                                sizeof(ipaddress));
-        infof(data, "connect to %s port %ld failed: %s\n",
+        infof(data, "connect to %s port %u failed: %s\n",
               ipaddress, conn->port,
               Curl_strerror(error, buffer, sizeof(buffer)));
 #endif
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 63b9745a8..1ccf6da36 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -3868,7 +3868,7 @@ static CURLcode servercert(struct Curl_easy *data,
     long len;
     ASN1_TIME_print(mem, X509_get0_notBefore(backend->server_cert));
     len = BIO_get_mem_data(mem, (char **) &ptr);
-    infof(data, " start date: %.*s\n", len, ptr);
+    infof(data, " start date: %.*s\n", (int)len, ptr);
     (void)BIO_reset(mem);
 
     ASN1_TIME_print(mem, X509_get0_notAfter(backend->server_cert));
diff --git a/lib/x509asn1.c b/lib/x509asn1.c
index acd39a4ed..1c1b9e1d2 100644
--- a/lib/x509asn1.c
+++ b/lib/x509asn1.c
@@ -517,7 +517,7 @@ static const char *GTime2str(const char *beg, const char *end)
   return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s",
                        beg, beg + 4, beg + 6,
                        beg + 8, beg + 10, sec1, sec2,
-                       fracl? ".": "", fracl, fracp,
+                       fracl? ".": "", (int)fracl, fracp,
                        sep, (int)tzl, tzp);
 }