diff --git a/pc/peerconnection.cc b/pc/peerconnection.cc
index c352960383..3966e2341e 100644
--- a/pc/peerconnection.cc
+++ b/pc/peerconnection.cc
@@ -1745,7 +1745,7 @@ void PeerConnection::CreateOffer(CreateSessionDescriptionObserver* observer,
     std::string error = "CreateOffer called when PeerConnection is closed.";
     RTC_LOG(LS_ERROR) << error;
     PostCreateSessionDescriptionFailure(
-        observer, RTCError(RTCErrorType::INTERNAL_ERROR, std::move(error)));
+        observer, RTCError(RTCErrorType::INVALID_STATE, std::move(error)));
     return;
   }
 
@@ -1753,7 +1753,7 @@ void PeerConnection::CreateOffer(CreateSessionDescriptionObserver* observer,
     std::string error = "CreateOffer called with invalid options.";
     RTC_LOG(LS_ERROR) << error;
     PostCreateSessionDescriptionFailure(
-        observer, RTCError(RTCErrorType::INTERNAL_ERROR, std::move(error)));
+        observer, RTCError(RTCErrorType::INVALID_PARAMETER, std::move(error)));
     return;
   }
 
@@ -1860,7 +1860,7 @@ void PeerConnection::CreateAnswer(
     std::string error = "CreateAnswer called with invalid constraints.";
     RTC_LOG(LS_ERROR) << error;
     PostCreateSessionDescriptionFailure(
-        observer, RTCError(RTCErrorType::INTERNAL_ERROR, std::move(error)));
+        observer, RTCError(RTCErrorType::INVALID_PARAMETER, std::move(error)));
     return;
   }
 
@@ -1882,7 +1882,7 @@ void PeerConnection::CreateAnswer(CreateSessionDescriptionObserver* observer,
         "have-remote-offer or have-local-pranswer.";
     RTC_LOG(LS_ERROR) << error;
     PostCreateSessionDescriptionFailure(
-        observer, RTCError(RTCErrorType::INTERNAL_ERROR, std::move(error)));
+        observer, RTCError(RTCErrorType::INVALID_STATE, std::move(error)));
     return;
   }