diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index d606adaf8e..481c2423cc 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -401,7 +401,7 @@ static int journal_file_move_to(JournalFile *f, int context, bool keep_always, u
 
 static uint64_t minimum_header_size(Object *o) {
 
-        static uint64_t table[] = {
+        static const uint64_t table[] = {
                 [OBJECT_DATA] = sizeof(DataObject),
                 [OBJECT_FIELD] = sizeof(FieldObject),
                 [OBJECT_ENTRY] = sizeof(EntryObject),
diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 773ece07e8..21b0821b6b 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -54,11 +54,11 @@ typedef struct JournalFile {
 
         int flags;
         int prot;
-        bool writable;
-        bool compress;
-        bool seal;
+        bool writable:1;
+        bool compress:1;
+        bool seal:1;
 
-        bool tail_entry_monotonic_valid;
+        bool tail_entry_monotonic_valid:1;
 
         direction_t last_direction;