diff --git a/examples/detector/src/detector.cpp b/examples/detector/src/detector.cpp
index a354fff4f2ebf1f782e65947ffb416e55798276a..b581a5d7364d27a75db236d8e408ace983afc4a8 100644
--- a/examples/detector/src/detector.cpp
+++ b/examples/detector/src/detector.cpp
@@ -26,7 +26,7 @@ namespace DetectorTest {
     const int START_INDEX = 3;
 }
 
-namespace{
+namespace {
 bool IsPrime(int n)
 {
     if (n <= 1) {