diff --git a/src/NpcAct020.cpp b/src/NpcAct020.cpp
index 09d9d06a..83c7a49c 100644
--- a/src/NpcAct020.cpp
+++ b/src/NpcAct020.cpp
@@ -197,7 +197,7 @@ void ActNpc024(NPCHAR *npc)
 				npc->act_no = 4;
 				npc->ani_no = 3;
 				npc->act_wait = 0;
-				npc->act_wait = 0;
+				npc->act_wait = 0;	// lol duplicate line
 			}
 
 			break;
@@ -487,7 +487,7 @@ void ActNpc028(NPCHAR *npc)
 					npc->direct = 2;
 
 				if (npc->direct == 0)
-					npc->xm = -0x100u;
+					npc->xm = -0x100;
 				else
 					npc->xm = 0x100;
 			}
@@ -501,7 +501,7 @@ void ActNpc028(NPCHAR *npc)
 				npc->act_no = 4;
 				npc->ani_no = 3;
 				npc->act_wait = 0;
-				npc->act_wait = 0;
+				npc->act_wait = 0;	// lol duplicate line
 			}
 
 			break;
diff --git a/src/Sound.h b/src/Sound.h
index 3c02e75f..2e78292c 100644
--- a/src/Sound.h
+++ b/src/Sound.h
@@ -20,7 +20,7 @@ class SOUNDBUFFER
 		void Play(bool bLooping);
 		void Stop();
 		
-		void Mix(float *buffer, int len);
+		void Mix(float (*buffer)[2], size_t samples);
 		
 		SOUNDBUFFER *next;