diff --git a/src/character.h b/src/character.h
index 69aeae553cf7f..c4e2742b15f2d 100644
--- a/src/character.h
+++ b/src/character.h
@@ -2753,7 +2753,7 @@ class Character : public Creature, public visitable
         @param minimum_error Maximum error when skill is >= threshold */
         time_duration estimate_effect_dur( const skill_id &relevant_skill, const efftype_id &effect,
                                            const time_duration &error_magnitude,
-                                           const time_duration &mimimum_error, int threshold, const Creature &target ) const;
+                                           const time_duration &minimum_error, int threshold, const Creature &target ) const;
 
         // inherited from visitable
         bool has_quality( const quality_id &qual, int level = 1, int qty = 1 ) const override;
diff --git a/src/iuse_actor.cpp b/src/iuse_actor.cpp
index a511e0fec3e9e..a3f7161126340 100644
--- a/src/iuse_actor.cpp
+++ b/src/iuse_actor.cpp
@@ -2183,13 +2183,13 @@ void learn_spell_actor::info( const item &, std::vector<iteminfo> &dump ) const
                 const spell sp = pc.magic->get_spell( sp_id );
                 spell_text += ": " + string_format( _( "Level %u" ), sp.get_level() );
                 if( sp.is_max_level() ) {
-                    spell_text = "<color_light_green>" + spell_text + _( " (Max)" ) + "</color>";
+                    spell_text = string_format( _( "<color_light_green>%1$s (Max)</color>" ), spell_text );
                 } else {
-                    spell_text = "<color_yellow>" + spell_text + "</color>";
+                    spell_text = string_format( "<color_yellow>%s</color>", spell_text );
                 }
             } else {
                 if( pc.magic->can_learn_spell( pc, sp_id ) ) {
-                    spell_text = "<color_light_blue>" + spell_text + "</color>";
+                    spell_text = string_format( "<color_light_blue>%s</color>", spell_text );
                 }
             }
             dump.emplace_back( "SPELL", spell_text );