diff --git a/src/line_buffer.cc b/src/line_buffer.cc
index e27cde36..a0899e64 100644
--- a/src/line_buffer.cc
+++ b/src/line_buffer.cc
@@ -200,6 +200,9 @@ line_buffer::gz_indexed::open(int fd, header_data& hd)
     unsigned char name[1024];
     unsigned char comment[4096];
 
+    name[0] = '\0';
+    comment[0] = '\0';
+
     gz_header gz_hd;
     memset(&gz_hd, 0, sizeof(gz_hd));
     gz_hd.name = name;
diff --git a/src/log_format_fwd.hh b/src/log_format_fwd.hh
index af8a7254..8b9d3017 100644
--- a/src/log_format_fwd.hh
+++ b/src/log_format_fwd.hh
@@ -90,23 +90,23 @@ public:
     logline(file_off_t off,
             time_t t,
             uint16_t millis,
-            log_level_t l,
+            log_level_t lev,
             uint8_t mod = 0,
             uint8_t opid = 0)
-        : ll_offset(off), ll_time(t), ll_millis(millis), ll_opid(opid),
-          ll_sub_offset(0), ll_valid_utf(1), ll_level(l), ll_module_id(mod),
-          ll_expr_mark(0)
+        : ll_offset(off), ll_has_ansi(false), ll_time(t), ll_millis(millis),
+          ll_opid(opid), ll_sub_offset(0), ll_valid_utf(1), ll_level(lev),
+          ll_module_id(mod), ll_expr_mark(0)
     {
         memset(this->ll_schema, 0, sizeof(this->ll_schema));
     }
 
     logline(file_off_t off,
             const struct timeval& tv,
-            log_level_t l,
+            log_level_t lev,
             uint8_t mod = 0,
             uint8_t opid = 0)
-        : ll_offset(off), ll_opid(opid), ll_sub_offset(0), ll_valid_utf(1),
-          ll_level(l), ll_module_id(mod), ll_expr_mark(0)
+        : ll_offset(off), ll_has_ansi(false), ll_opid(opid), ll_sub_offset(0),
+          ll_valid_utf(1), ll_level(lev), ll_module_id(mod), ll_expr_mark(0)
     {
         this->set_time(tv);
         memset(this->ll_schema, 0, sizeof(this->ll_schema));
diff --git a/src/textfile_sub_source.cc b/src/textfile_sub_source.cc
index ce3d084c..c9996b54 100644
--- a/src/textfile_sub_source.cc
+++ b/src/textfile_sub_source.cc
@@ -528,7 +528,7 @@ textfile_sub_source::rescan_files(
                     auto content = read_res.unwrap();
                     auto content_sf = string_fragment::from_str(content);
                     std::string frontmatter;
-                    text_format_t frontmatter_format;
+                    text_format_t frontmatter_format{text_format_t::TF_UNKNOWN};
 
                     auto cap_res = FRONT_MATTER_RE.capture_from(content_sf)
                                        .into(md)
@@ -541,7 +541,6 @@ textfile_sub_source::rescan_files(
                         } else if (md[2]) {
                             frontmatter_format = text_format_t::TF_TOML;
                             frontmatter = md[2]->to_string();
-                        } else {
                         }
                         content_sf = cap_res->f_remaining;
                     } else if (content_sf.startswith("{")) {