diff --git a/scripts/check_style.sh b/scripts/check_style.sh
index f3e00d8ed..78b0aa23c 100755
--- a/scripts/check_style.sh
+++ b/scripts/check_style.sh
@@ -47,6 +47,7 @@ FORMATERROR=$(
     preparedGrep "\<(if|for|while|switch)\(" # no space after "if", "for", "while" or "switch"
     preparedGrep "\<for\>\s*\([^=]*\>\s:\s.*\)" # no space before range based for-loop
     preparedGrep "\<if\>\s*\(.*\)\s*\{\s*$" # "{\n" on same line as "if"
+    preparedGrep "namespace .*\{"
     preparedGrep "[,\(<]\s*const " # const on left side of type
     preparedGrep "^\s*(static)?\s*const " # const on left side of type (beginning of line)
     preparedGrep "^ [^*]|[^*] 	|	 [^*]" # uses spaces for indentation or mixes spaces and tabs