diff --git a/src/ca65/condasm.c b/src/ca65/condasm.c
index 5b699e574..82b738c44 100644
--- a/src/ca65/condasm.c
+++ b/src/ca65/condasm.c
@@ -379,7 +379,7 @@ void DoConditionals (void)
      		break;
 
      	    default:
-     		// Skip tokens
+     		/* Skip tokens */
      		NextTok ();
 
      	}
diff --git a/src/ca65/pseudo.c b/src/ca65/pseudo.c
index f41a3968b..7dd9c19e1 100644
--- a/src/ca65/pseudo.c
+++ b/src/ca65/pseudo.c
@@ -263,7 +263,7 @@ static void DoASCIIZ (void)
 	    ErrorSkip (ERR_STRCON_EXPECTED);
 	    return;
 	}
-	EmitData (SVal, strlen (SVal));
+       	EmitData ((unsigned char*) SVal, strlen (SVal));
 	NextTok ();
 	if (Tok == TOK_COMMA) {
 	    NextTok ();
@@ -298,7 +298,7 @@ static void DoByte (void)
     while (1) {
 	if (Tok == TOK_STRCON) {
 	    /* A string */
-	    EmitData (SVal, strlen (SVal));
+       	    EmitData ((unsigned char*) SVal, strlen (SVal));
 	    NextTok ();
 	} else {
 	    EmitByte (Expression ());