diff --git a/packages/dd-trace/src/profiling/profilers/events.js b/packages/dd-trace/src/profiling/profilers/events.js
index 8ff1748ceda..5cff72ea2bc 100644
--- a/packages/dd-trace/src/profiling/profilers/events.js
+++ b/packages/dd-trace/src/profiling/profilers/events.js
@@ -14,7 +14,7 @@ const pprofValueUnit = 'nanoseconds'
 const dateOffset = BigInt(Math.round(performance.timeOrigin * MS_TO_NS))
 
 function labelFromStr (stringTable, key, valStr) {
-  return new Label({ key, str: stringTable.dedup(valStr) })
+  return new Label({ key, str: stringTable.dedup(String(valStr)) })
 }
 
 function labelFromStrStr (stringTable, keyStr, valStr) {