diff --git a/rtengine/clutstore.cc b/rtengine/clutstore.cc
index 5e96046ae..e96614e4c 100644
--- a/rtengine/clutstore.cc
+++ b/rtengine/clutstore.cc
@@ -229,7 +229,7 @@ void rtengine::HaldCLUT::getRGB(
 
         v_out = vintpf(v_b, v_tmp1, v_out);
 
-        _mm_store_ps(out_rgbx, vintpf(_mm_load_ps1(&strength), v_out, v_in));
+        STVF(*out_rgbx, vintpf(_mm_load_ps1(&strength), v_out, v_in));
 #endif
     }
 }
diff --git a/rtgui/preferences.cc b/rtgui/preferences.cc
index 10800d527..14c9cb0eb 100644
--- a/rtgui/preferences.cc
+++ b/rtgui/preferences.cc
@@ -572,9 +572,9 @@ Gtk::Widget* Preferences::getPerformancePanel ()
     clutCacheSizeSB->set_increments (1, 5);
     clutCacheSizeSB->set_max_length(2);  // Will this be sufficient? :)
 #ifdef _OPENMP
-    clutCacheSizeSB->set_range (1, 2 * omp_get_num_procs());
+    clutCacheSizeSB->set_range (1, 3 * omp_get_num_procs());
 #else
-    clutCacheSizeSB->set_range (1, 8);
+    clutCacheSizeSB->set_range (1, 12);
 #endif
     clutCacheSizeHB->pack_start (*CLUTLl, Gtk::PACK_SHRINK, 0);
     clutCacheSizeHB->pack_end (*clutCacheSizeSB, Gtk::PACK_SHRINK, 0);