diff --git a/libs/io/garf/io/writers/nosql_writer.py b/libs/io/garf/io/writers/nosql_writer.py
index ffbffd7..ac60e6b 100644
--- a/libs/io/garf/io/writers/nosql_writer.py
+++ b/libs/io/garf/io/writers/nosql_writer.py
@@ -55,7 +55,7 @@ def write(self, report: garf_report.GarfReport, destination: str) -> str:
       report: GarfReport to write.
       destination: collection name.
     """
-    with tracer.start_as_current_span('f{self.provider}.write') as span:
+    with tracer.start_as_current_span(f'{self.provider}.write') as span:
       span.set_attribute('writer.type', str(self.push_strategy))
       destination = formatter.format_extension(
         destination,