diff --git a/cmds/statsd/src/StatsService.cpp b/cmds/statsd/src/StatsService.cpp
index 26db3af..bf6cee7 100644
--- a/cmds/statsd/src/StatsService.cpp
+++ b/cmds/statsd/src/StatsService.cpp
@@ -423,6 +423,13 @@
             }
 
             if (args[1] == "update") {
+                char* endp;
+                int64_t configID = strtoll(name.c_str(), &endp, 10);
+                if (endp == name.c_str() || *endp != '\0') {
+                    fprintf(err, "Error parsing config ID.\n");
+                    return UNKNOWN_ERROR;
+                }
+
                 // Read stream into buffer.
                 string buffer;
                 if (!android::base::ReadFdToString(fileno(in), &buffer)) {
@@ -438,7 +445,7 @@
                 }
 
                 // Add / update the config.
-                mConfigManager->UpdateConfig(ConfigKey(uid, StrToInt64(name)), config);
+                mConfigManager->UpdateConfig(ConfigKey(uid, configID), config);
             } else {
                 if (argCount == 2) {
                     cmd_remove_all_configs(out);
diff --git a/cmds/statsd/src/guardrail/StatsdStats.cpp b/cmds/statsd/src/guardrail/StatsdStats.cpp
index 66cb1d0..6e45128 100644
--- a/cmds/statsd/src/guardrail/StatsdStats.cpp
+++ b/cmds/statsd/src/guardrail/StatsdStats.cpp
@@ -367,7 +367,7 @@
     fprintf(out, "%lu Config in icebox: \n", (unsigned long)mIceBox.size());
     for (const auto& configStats : mIceBox) {
         fprintf(out,
-                "Config {%d-%lld}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
+                "Config {%d_%lld}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
                 "#matcher=%d, #alert=%d,  valid=%d\n",
                 configStats.uid(), (long long)configStats.id(), configStats.creation_time_sec(),
                 configStats.deletion_time_sec(), configStats.metric_count(),
@@ -566,4 +566,4 @@
 
 }  // namespace statsd
 }  // namespace os
-}  // namespace android
\ No newline at end of file
+}  // namespace android