diff --git a/src/hb-ot-layout-gpos-table.hh b/src/hb-ot-layout-gpos-table.hh
index aebc73fb1..e0c8ede65 100644
--- a/src/hb-ot-layout-gpos-table.hh
+++ b/src/hb-ot-layout-gpos-table.hh
@@ -1389,8 +1389,6 @@ struct PosLookup : Lookup
 
   inline bool apply_once (hb_apply_context_t *c) const
   {
-    unsigned int lookup_type = get_type ();
-
     if (!c->check_glyph_property (&c->buffer->cur(), c->lookup_props, &c->property))
       return false;
 
diff --git a/src/hb-ot-layout-gsub-table.hh b/src/hb-ot-layout-gsub-table.hh
index f82663ad8..032abb0e5 100644
--- a/src/hb-ot-layout-gsub-table.hh
+++ b/src/hb-ot-layout-gsub-table.hh
@@ -609,9 +609,9 @@ struct Ligature
     unsigned int count = component.len;
     if (unlikely (count < 1)) return TRACE_RETURN (false);
 
-    unsigned int end_offset;
-    bool is_mark_ligature;
-    unsigned int total_component_count;
+    unsigned int end_offset = 0;
+    bool is_mark_ligature = false;
+    unsigned int total_component_count = 0;
 
     if (likely (!match_input (c, count,
 			      &component[1],
@@ -1184,8 +1184,6 @@ struct SubstLookup : Lookup
 
   inline bool apply_once (hb_apply_context_t *c) const
   {
-    unsigned int lookup_type = get_type ();
-
     if (!c->check_glyph_property (&c->buffer->cur(), c->lookup_props, &c->property))
       return false;
 
diff --git a/src/hb-ot-layout-gsubgpos-private.hh b/src/hb-ot-layout-gsubgpos-private.hh
index 16476e9ee..55ea9ca5c 100644
--- a/src/hb-ot-layout-gsubgpos-private.hh
+++ b/src/hb-ot-layout-gsubgpos-private.hh
@@ -1282,7 +1282,7 @@ static inline bool chain_context_apply_lookup (hb_apply_context_t *c,
 					       const LookupRecord lookupRecord[],
 					       ChainContextApplyLookupContext &lookup_context)
 {
-  unsigned int lookahead_offset;
+  unsigned int lookahead_offset = 0;
   return match_input (c,
 		      inputCount, input,
 		      lookup_context.funcs.match, lookup_context.match_data[1],
diff --git a/src/hb-private.hh b/src/hb-private.hh
index 42c025909..5c5359190 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -703,9 +703,9 @@ struct hb_auto_trace_t {
 
   private:
   unsigned int *plevel;
-  bool returned;
   const char *what;
   const void *obj;
+  bool returned;
 };
 template <> /* Optimize when tracing is disabled */
 struct hb_auto_trace_t<0> {