diff --git a/src/libslic3r/SLA/AGGRaster.hpp b/src/libslic3r/SLA/AGGRaster.hpp
index 2243a3c1b5..bc68cd3778 100644
--- a/src/libslic3r/SLA/AGGRaster.hpp
+++ b/src/libslic3r/SLA/AGGRaster.hpp
@@ -3,7 +3,6 @@
 
 #include <libslic3r/SLA/RasterBase.hpp>
 #include "libslic3r/ExPolygon.hpp"
-#include "libslic3r/MTUtils.hpp"
 
 // For rasterizing
 #include <agg/agg_basics.h>
diff --git a/src/libslic3r/SLA/RasterBase.hpp b/src/libslic3r/SLA/RasterBase.hpp
index 1eba360e31..6439830fe8 100644
--- a/src/libslic3r/SLA/RasterBase.hpp
+++ b/src/libslic3r/SLA/RasterBase.hpp
@@ -9,7 +9,7 @@
 #include <cstdint>
 
 #include <libslic3r/ExPolygon.hpp>
-#include <libslic3r/SLA/Concurrency.hpp>
+//#include <libslic3r/SLA/Concurrency.hpp>
 
 namespace Slic3r {
 
diff --git a/src/libslic3r/SLAPrint.hpp b/src/libslic3r/SLAPrint.hpp
index 833146985a..0622bec4e5 100644
--- a/src/libslic3r/SLAPrint.hpp
+++ b/src/libslic3r/SLAPrint.hpp
@@ -10,6 +10,8 @@
 #include "MTUtils.hpp"
 #include "Zipper.hpp"
 
+#include "libslic3r/Execution/ExecutionTBB.hpp"
+
 namespace Slic3r {
 
 enum SLAPrintStep : unsigned int {