diff --git a/auto-insert/cpp b/auto-insert/cpp
index 450fc30..a62c825 100644
--- a/auto-insert/cpp
+++ b/auto-insert/cpp
@@ -16,3 +16,4 @@
 
 #include "`(file-name-nondirectory (file-name-sans-extension (buffer-file-name)))`.hpp"
 
+using namespace ${2:`(projectile-project-name)`};
diff --git a/auto-insert/hpp b/auto-insert/hpp
index dd1d015..2a0669f 100644
--- a/auto-insert/hpp
+++ b/auto-insert/hpp
@@ -17,6 +17,9 @@
 #ifndef ${1:`(upcase (replace-regexp-in-string "-" "_" (projectile-project-name)))`_`(upcase (file-name-nondirectory (file-name-sans-extension (buffer-file-name))))`_`(upcase (file-name-extension (buffer-file-name)))`}
 #define $1
 
-$0
+namespace ${2:`(projectile-project-name)`}
+{
+    $0
+} // namespace $2
 
 #endif  // $1