diff --git a/src/configuration.cpp b/src/configuration.cpp
index 78c7e61..b400a2f 100644
--- a/src/configuration.cpp
+++ b/src/configuration.cpp
@@ -132,6 +132,8 @@
   return caItem;
 }
 
+namespace ca {
+
 void
 CaConfig::load(const std::string& fileName)
 {
@@ -181,6 +183,8 @@
   }
 }
 
+} // namespace ca
+
 void
 RequesterCaCache::load(const std::string& fileName)
 {