diff --git a/exporters/autoexport/spans.go b/exporters/autoexport/spans.go
index ecb699f8f6b..c25dc9b0ae7 100644
--- a/exporters/autoexport/spans.go
+++ b/exporters/autoexport/spans.go
@@ -55,7 +55,7 @@ func NewSpanExporter(ctx context.Context, opts ...SpanOption) (trace.SpanExporte
 }
 
 // RegisterSpanExporter sets the SpanExporter factory to be used when the
-// OTEL_TRACES_EXPORTERS environment variable contains the exporter name. This
+// OTEL_TRACES_EXPORTER environment variable contains the exporter name. This
 // will panic if name has already been registered.
 func RegisterSpanExporter(name string, factory func(context.Context) (trace.SpanExporter, error)) {
 	must(tracesSignal.registry.store(name, factory))