diff --git a/src/gui/guiScrollBar.cpp b/src/gui/guiScrollBar.cpp
index b04ccb9d5..c6a03f3e4 100644
--- a/src/gui/guiScrollBar.cpp
+++ b/src/gui/guiScrollBar.cpp
@@ -21,7 +21,7 @@ GUIScrollBar::GUIScrollBar(IGUIEnvironment *environment, IGUIElement *parent, s3
 		is_horizontal(horizontal), is_auto_scaling(auto_scale),
 		dragged_by_slider(false), tray_clicked(false), scroll_pos(0),
 		draw_center(0), thumb_size(0), min_pos(0), max_pos(100), small_step(10),
-		large_step(50), last_change(0), drag_offset(0), page_size(100), border_size(0)
+		large_step(50), drag_offset(0), page_size(100), border_size(0)
 {
 	refreshControls();
 	setNotClipped(false);
diff --git a/src/gui/guiScrollBar.h b/src/gui/guiScrollBar.h
index 29493bb99..d18f8e875 100644
--- a/src/gui/guiScrollBar.h
+++ b/src/gui/guiScrollBar.h
@@ -68,7 +68,6 @@ private:
 	s32 max_pos;
 	s32 small_step;
 	s32 large_step;
-	u32 last_change;
 	s32 drag_offset;
 	s32 page_size;
 	s32 border_size;
diff --git a/src/mapgen/mg_ore.cpp b/src/mapgen/mg_ore.cpp
index b50ed6a32..5814f433a 100644
--- a/src/mapgen/mg_ore.cpp
+++ b/src/mapgen/mg_ore.cpp
@@ -498,7 +498,11 @@ void OreVein::generate(MMVManip *vm, int mapseed, u32 blockseed,
 		}
 
 		// randval ranges from -1..1
-		float randval   = (float)pr.next() / (pr.RANDOM_RANGE / 2) - 1.f;
+		/* 
+			Note: can generate values slightly larger than 1 
+			but this can't be changed as mapgen must be deterministic accross versions.
+		*/
+		float randval   = (float)pr.next() / float(pr.RANDOM_RANGE / 2) - 1.f;
 		float noiseval  = contour(noise->result[index]);
 		float noiseval2 = contour(noise2->result[index]);
 		if (noiseval * noiseval2 + randval * random_factor < nthresh)