diff --git a/src/libcmd/repl-interacter.cc b/src/libcmd/repl-interacter.cc
index d3567e021..843ebbbd2 100644
--- a/src/libcmd/repl-interacter.cc
+++ b/src/libcmd/repl-interacter.cc
@@ -1,6 +1,8 @@
 #include <cstdio>
 #include <iostream>
 #include <string>
+#include <string_view>
+#include <cerrno>
 
 #ifdef READLINE
 #include <readline/history.h>
@@ -176,7 +178,14 @@ bool ReadlineLikeInteracter::getLine(std::string & input, ReplPromptType promptT
     if (!s)
         return false;
 
-    write_history(historyFile.c_str());
+    if (write_history(historyFile.c_str()) != 0) {
+        // write_history returns the result of fclose() (which also flushes).
+        // We should explicitly ignore these errors, but log them so the user
+        // isn't confused why their history is getting eaten.
+        error_t const fcloseErr = errno;
+        std::string_view const errMsg(strerror(fcloseErr));
+        warn("ignoring error writing repl history to %s: %s", historyFile, errMsg);
+    }
     input += s;
     input += '\n';
     return true;
@@ -184,7 +193,13 @@ bool ReadlineLikeInteracter::getLine(std::string & input, ReplPromptType promptT
 
 ReadlineLikeInteracter::~ReadlineLikeInteracter()
 {
-    write_history(historyFile.c_str());
+    if (write_history(historyFile.c_str()) != 0) {
+        // write_history returns the result of fclose() (which also flushes).
+        // We should explicitly ignore these errors, but log them.
+        error_t const fcloseErr = errno;
+        std::string_view const errMsg(strerror(fcloseErr));
+        warn("ignoring error writing repl history to %s: %s", historyFile, errMsg);
+    }
 }
 
 AutomationInteracter::Guard AutomationInteracter::init(detail::ReplCompleterMixin *)