diff --git a/src/FwdState.cc b/src/FwdState.cc
index 509127fc525..abae1d6a5ac 100644
--- a/src/FwdState.cc
+++ b/src/FwdState.cc
@@ -240,11 +240,7 @@ FwdState::updateAleWithFinalError()
     if (!err || !al)
         return;
 
-    LogTagsErrors lte;
-    if (err->xerrno == ETIMEDOUT || err->type == ERR_READ_TIMEOUT)
-        lte.timedout = true;
-    else if (err->type != ERR_NONE)
-        lte.aborted = true;
+    const auto lte = LogTagsErrors::FromErrno(err->type == ERR_READ_TIMEOUT ? ETIMEDOUT : err->xerrno);
     al->cache.code.err.update(lte);
     if (!err->detail) {
         static const auto d = MakeNamedErrorDetail("WITH_SERVER");
diff --git a/src/LogTags.cc b/src/LogTags.cc
index 36402056735..548023fb746 100644
--- a/src/LogTags.cc
+++ b/src/LogTags.cc
@@ -18,6 +18,15 @@ LogTagsErrors::update(const LogTagsErrors &other)
     aborted = aborted || other.aborted;
 }
 
+LogTagsErrors
+LogTagsErrors::FromErrno(const int errNo)
+{
+    LogTagsErrors lte;
+    lte.timedout = (errNo == ETIMEDOUT);
+    lte.aborted = !lte.timedout; // intentionally true for zero errNo
+    return lte;
+}
+
 /* LogTags */
 
 // old deprecated tag strings
diff --git a/src/LogTags.h b/src/LogTags.h
index d101c81a993..fe6f658b354 100644
--- a/src/LogTags.h
+++ b/src/LogTags.h
@@ -17,6 +17,9 @@
 class LogTagsErrors
 {
 public:
+    /// constructs an object matching errno(3) of a failed I/O call
+    static LogTagsErrors FromErrno(int errNo);
+
     /// Update each of this object flags to "set" if the corresponding
     /// flag of the given object is set
     void update(const LogTagsErrors &other);
diff --git a/src/servers/Server.cc b/src/servers/Server.cc
index 1dc20e56af4..eba0fca3e7c 100644
--- a/src/servers/Server.cc
+++ b/src/servers/Server.cc
@@ -173,10 +173,7 @@ Server::doClientRead(const CommIoCbParams &io)
     // case Comm::COMM_ERROR:
     default: // no other flags should ever occur
         debugs(33, 2, io.conn << ": got flag " << rd.flag << "; " << xstrerr(rd.xerrno));
-        LogTagsErrors lte;
-        lte.timedout = rd.xerrno == ETIMEDOUT;
-        lte.aborted = !lte.timedout; // intentionally true for zero rd.xerrno
-        terminateAll(Error(ERR_READ_ERROR, SysErrorDetail::NewIfAny(rd.xerrno)), lte);
+        terminateAll(Error(ERR_READ_ERROR, SysErrorDetail::NewIfAny(rd.xerrno)), LogTagsErrors::FromErrno(rd.xerrno));
         return;
     }
 
@@ -206,10 +203,7 @@ Server::clientWriteDone(const CommIoCbParams &io)
 
     if (io.flag) {
         debugs(33, 2, "bailing after a write failure: " << xstrerr(io.xerrno));
-        LogTagsErrors lte;
-        lte.timedout = io.xerrno == ETIMEDOUT;
-        lte.aborted = !lte.timedout; // intentionally true for zero io.xerrno
-        terminateAll(Error(ERR_WRITE_ERROR, SysErrorDetail::NewIfAny(io.xerrno)), lte);
+        terminateAll(Error(ERR_WRITE_ERROR, SysErrorDetail::NewIfAny(io.xerrno)), LogTagsErrors::FromErrno(io.xerrno));
         return;
     }