1 files changed, 9 insertions, 6 deletions
diff --git a/src/builtin_printf.cpp b/src/builtin_printf.cpp
index a3df00d3..a755d27a 100644
--- a/src/builtin_printf.cpp
+++ b/src/builtin_printf.cpp
@@ -596,21 +596,24 @@ int builtin_printf_state_t::print_formatted(const wchar_t *format, int argc, wch
                 for (;; f++, direc_length++) {
                     switch (*f) {
                         case L'I':
-                        case L'\'':
+                        case L'\'': {
                             modify_allowed_format_specifiers(ok, "aAceEosxX", false);
                             break;
+                        }
                         case '-':
                         case '+':
-                        case ' ':
+                        case ' ': {
                             break;
-                        case L'#':
+                        }
+                        case L'#': {
                             modify_allowed_format_specifiers(ok, "cdisu", false);
                             break;
-                        case '0':
+                        }
+                        case '0': {
                             modify_allowed_format_specifiers(ok, "cs", false);
                             break;
-                        default:
-                            goto no_more_flag_characters;
+                        }
+                        default: { goto no_more_flag_characters; }
                     }
                 }
             no_more_flag_characters:;