diff --git a/source/arm11/acf.c b/source/arm11/acf.c
index e81b78a..eeb1f2d 100644
--- a/source/arm11/acf.c
+++ b/source/arm11/acf.c
@@ -391,7 +391,7 @@ acf_canvas_t acf_get_canvas(acf_rectedge_t width, acf_text_t text, acf_rectedge_
     return canvas;
 }
 
-acf_canvas_t acf_calculate(acf_rectedge_t width, acf_text_t text, acf_rectedge_t *realwidth, acf_counter_t *renderedcnt, acf_text_t *rest)
+acf_error_t acf_calculate(acf_rectedge_t width, acf_text_t text, acf_rectedge_t *realwidth, acf_counter_t *renderedcnt, acf_text_t *rest)
 {
     FHandle font;
     if( gblfont.filename == NULL || RES_OK != fOpen(&font, gblfont.filename, FA_OPEN_EXISTING | FA_READ) )
diff --git a/source/arm11/filebrowser.c b/source/arm11/filebrowser.c
index 882295e..8137d72 100644
--- a/source/arm11/filebrowser.c
+++ b/source/arm11/filebrowser.c
@@ -129,7 +129,7 @@ scanEnd:
 
 	if( match != NULL )
 	{
-		for( int i=0; i < dList->num; ++i )
+		for( u32 i=0; i < dList->num; ++i )
 		{
 			if( strcmp(match, &dList->ptrs[i][1]) == 0 )
 			{