diff --git a/pc/peerconnection_bundle_unittest.cc b/pc/peerconnection_bundle_unittest.cc
index d36ad2e3c2..8e41d3d139 100644
--- a/pc/peerconnection_bundle_unittest.cc
+++ b/pc/peerconnection_bundle_unittest.cc
@@ -92,9 +92,10 @@ class PeerConnectionWrapperForBundleTest : public PeerConnectionWrapper {
   }
 
   PeerConnection* GetInternalPeerConnection() {
-    auto* pci = reinterpret_cast<
-        PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(pc());
-    return reinterpret_cast<PeerConnection*>(pci->internal());
+    auto* pci =
+        static_cast<PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(
+            pc());
+    return static_cast<PeerConnection*>(pci->internal());
   }
 
   // Returns true if the stats indicate that an ICE connection is either in
diff --git a/pc/peerconnection_datachannel_unittest.cc b/pc/peerconnection_datachannel_unittest.cc
index 918544cc27..02bac685b4 100644
--- a/pc/peerconnection_datachannel_unittest.cc
+++ b/pc/peerconnection_datachannel_unittest.cc
@@ -74,9 +74,10 @@ class PeerConnectionWrapperForDataChannelTest : public PeerConnectionWrapper {
   }
 
   PeerConnection* GetInternalPeerConnection() {
-    auto* pci = reinterpret_cast<
-        PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(pc());
-    return reinterpret_cast<PeerConnection*>(pci->internal());
+    auto* pci =
+        static_cast<PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(
+            pc());
+    return static_cast<PeerConnection*>(pci->internal());
   }
 
  private:
diff --git a/pc/peerconnection_ice_unittest.cc b/pc/peerconnection_ice_unittest.cc
index 52de1f65a4..e6ba598e44 100644
--- a/pc/peerconnection_ice_unittest.cc
+++ b/pc/peerconnection_ice_unittest.cc
@@ -187,11 +187,10 @@ class PeerConnectionIceUnitTest : public ::testing::Test {
   // TODO(qingsi): Rewrite this method in terms of the standard IceTransport
   // after it is implemented.
   cricket::IceRole GetIceRole(const WrapperPtr& pc_wrapper_ptr) {
-    auto* pc_proxy = reinterpret_cast<
-        PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(
-        pc_wrapper_ptr->pc());
-    PeerConnection* pc =
-        reinterpret_cast<PeerConnection*>(pc_proxy->internal());
+    auto* pc_proxy =
+        static_cast<PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(
+            pc_wrapper_ptr->pc());
+    PeerConnection* pc = static_cast<PeerConnection*>(pc_proxy->internal());
     return pc->voice_channel()
         ->rtp_dtls_transport()
         ->ice_transport()
diff --git a/pc/peerconnection_signaling_unittest.cc b/pc/peerconnection_signaling_unittest.cc
index 48de0ab540..282ce1ce53 100644
--- a/pc/peerconnection_signaling_unittest.cc
+++ b/pc/peerconnection_signaling_unittest.cc
@@ -48,9 +48,10 @@ class PeerConnectionWrapperForSignalingTest : public PeerConnectionWrapper {
   }
 
   PeerConnection* GetInternalPeerConnection() {
-    auto* pci = reinterpret_cast<
-        PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(pc());
-    return reinterpret_cast<PeerConnection*>(pci->internal());
+    auto* pci =
+        static_cast<PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(
+            pc());
+    return static_cast<PeerConnection*>(pci->internal());
   }
 };