diff --git a/Source/Core/Core/IOS/ES/ES.cpp b/Source/Core/Core/IOS/ES/ES.cpp
index 9cf77b3487..4dcb0e9ff6 100644
--- a/Source/Core/Core/IOS/ES/ES.cpp
+++ b/Source/Core/Core/IOS/ES/ES.cpp
@@ -514,9 +514,11 @@ IPCCommandResult ES::IOCtlV(const IOCtlVRequest& request)
   case IOCTL_ES_GET_TICKET_FROM_VIEW:
     return GetTicketFromView(request);
 
+  case IOCTL_ES_DELETE_STREAM_KEY:
+    return DeleteStreamKey(request);
+
   case IOCTL_ES_VERIFYSIGN:
   case IOCTL_ES_UNKNOWN_3C:
-  case IOCTL_ES_UNKNOWN_3D:
   case IOCTL_ES_UNKNOWN_41:
   case IOCTL_ES_UNKNOWN_42:
     PanicAlert("IOS-ES: Unimplemented ioctlv 0x%x (%zu in vectors, %zu io vectors)",
@@ -643,6 +645,15 @@ s32 ES::DIVerify(const IOS::ES::TMDReader& tmd, const IOS::ES::TicketReader& tic
 
   return IPC_SUCCESS;
 }
+
+IPCCommandResult ES::DeleteStreamKey(const IOCtlVRequest& request)
+{
+  if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != sizeof(u32))
+    return GetDefaultReply(ES_EINVAL);
+
+  const u32 handle = Memory::Read_U32(request.in_vectors[0].address);
+  return GetDefaultReply(m_ios.GetIOSC().DeleteObject(handle, PID_ES));
+}
 }  // namespace Device
 }  // namespace HLE
 }  // namespace IOS
diff --git a/Source/Core/Core/IOS/ES/ES.h b/Source/Core/Core/IOS/ES/ES.h
index 543768c144..a918a72d49 100644
--- a/Source/Core/Core/IOS/ES/ES.h
+++ b/Source/Core/Core/IOS/ES/ES.h
@@ -184,7 +184,7 @@ private:
     IOCTL_ES_DIGETTMD = 0x3A,
     IOCTL_ES_DIVERIFY_WITH_VIEW = 0x3B,
     IOCTL_ES_UNKNOWN_3C = 0x3C,
-    IOCTL_ES_UNKNOWN_3D = 0x3D,
+    IOCTL_ES_DELETE_STREAM_KEY = 0x3D,
     IOCTL_ES_DELETE_CONTENT = 0x3E,
     IOCTL_ES_INVALID_3F = 0x3F,
     IOCTL_ES_GET_V0_TICKET_FROM_VIEW = 0x40,
@@ -234,6 +234,7 @@ private:
   IPCCommandResult Launch(const IOCtlVRequest& request);
   IPCCommandResult LaunchBC(const IOCtlVRequest& request);
   IPCCommandResult DIVerify(const IOCtlVRequest& request);
+  IPCCommandResult DeleteStreamKey(const IOCtlVRequest& request);
 
   // Title contents
   IPCCommandResult OpenTitleContent(u32 uid, const IOCtlVRequest& request);