diff --git a/toxav/rtp_test.cc b/toxav/rtp_test.cc
index b41ff905..b0854142 100644
--- a/toxav/rtp_test.cc
+++ b/toxav/rtp_test.cc
@@ -47,7 +47,7 @@ TEST(Rtp, SerialisingAllOnes) {
   uint8_t rdata[RTP_HEADER_SIZE];
   rtp_header_pack(rdata, &header);
 
-  EXPECT_EQ(std::string((char const *)rdata, sizeof rdata),
+  EXPECT_EQ(std::string(reinterpret_cast<char const *>(rdata), sizeof rdata),
             std::string("\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
                         "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
                         "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
diff --git a/toxcore/mono_time_test.cc b/toxcore/mono_time_test.cc
index 3b33a241..20a6826e 100644
--- a/toxcore/mono_time_test.cc
+++ b/toxcore/mono_time_test.cc
@@ -36,7 +36,7 @@ TEST(MonoTime, IsTimeout) {
 }
 
 uint64_t test_current_time_callback(Mono_Time *mono_time, void *user_data) {
-  return *(uint64_t *)user_data;
+  return *static_cast<uint64_t *>(user_data);
 }
 
 TEST(MonoTime, CustomTime) {