diff --git a/include/pybind11/functional.h b/include/pybind11/functional.h
index ed269b9bf..013b27592 100644
--- a/include/pybind11/functional.h
+++ b/include/pybind11/functional.h
@@ -27,25 +27,23 @@ public:
         if (!src_ || !PyCallable_Check(src_.ptr()))
             return false;
 
-        {
-            /*
-               When passing a C++ function as an argument to another C++
-               function via Python, every function call would normally involve
-               a full C++ -> Python -> C++ roundtrip, which can be prohibitive.
-               Here, we try to at least detect the case where the function is
-               stateless (i.e. function pointer or lambda function without
-               captured variables), in which case the roundtrip can be avoided.
-             */
-            if (PyCFunction_Check(src_.ptr())) {
-                capsule c(PyCFunction_GetSelf(src_.ptr()), true);
-                auto rec = (function_record *) c;
-                using FunctionType = Return (*) (Args...);
+        /*
+           When passing a C++ function as an argument to another C++
+           function via Python, every function call would normally involve
+           a full C++ -> Python -> C++ roundtrip, which can be prohibitive.
+           Here, we try to at least detect the case where the function is
+           stateless (i.e. function pointer or lambda function without
+           captured variables), in which case the roundtrip can be avoided.
+         */
+        if (PyCFunction_Check(src_.ptr())) {
+            capsule c(PyCFunction_GetSelf(src_.ptr()), true);
+            auto rec = (function_record *) c;
+            using FunctionType = Return (*) (Args...);
 
-                if (rec && rec->is_stateless && rec->data[1] == &typeid(FunctionType)) {
-                    struct capture { FunctionType f; };
-                    value = ((capture *) &rec->data)->f;
-                    return true;
-                }
+            if (rec && rec->is_stateless && rec->data[1] == &typeid(FunctionType)) {
+                struct capture { FunctionType f; };
+                value = ((capture *) &rec->data)->f;
+                return true;
             }
         }
 
diff --git a/include/pybind11/numpy.h b/include/pybind11/numpy.h
index af465a17d..4120f2826 100644
--- a/include/pybind11/numpy.h
+++ b/include/pybind11/numpy.h
@@ -693,8 +693,8 @@ struct field_descriptor {
 inline PYBIND11_NOINLINE void register_structured_dtype(
     const std::initializer_list<field_descriptor>& fields,
     const std::type_info& tinfo, size_t itemsize,
-    bool (*direct_converter)(PyObject *, void *&))
-{
+    bool (*direct_converter)(PyObject *, void *&)) {
+
     auto& numpy_internals = get_numpy_internals();
     if (numpy_internals.get_type_info(tinfo, false))
         pybind11_fail("NumPy: dtype is already registered");
diff --git a/tools/check-style.sh b/tools/check-style.sh
index bc52dc863..73909f503 100755
--- a/tools/check-style.sh
+++ b/tools/check-style.sh
@@ -39,6 +39,19 @@ while read -u 3 f; do
     echo "    $f"
 done
 
+found=
+# The mt=41 sets a red background for matched tabs:
+exec 3< <(GREP_COLORS='mt=41' grep '^\s*{\s*$' include/ docs/*.rst -rn --color=always)
+while read -u 3 f; do
+    if [ -z "$found" ]; then
+        echo -e '\e[31m\e[01mError: braces should occur on the same line as the if/while/.. statement. Found issues in the following files: \e[0m'
+        found=1
+        errors=1
+    fi
+
+    echo "    $f"
+done
+
 found=
 exec 3< <(grep '\<\(if\|for\|while\)(\|){' include/ tests/*.{cpp,py,h} -rn --color=always)
 while read -u 3 line; do