1 files changed, 2 insertions, 2 deletions
diff --git a/source/blender/editors/space_view3d/view3d_project.c b/source/blender/editors/space_view3d/view3d_project.c
index 78b873f533c..e23bb1f7a4f 100644
--- a/source/blender/editors/space_view3d/view3d_project.c
+++ b/source/blender/editors/space_view3d/view3d_project.c
@@ -30,7 +30,7 @@
 void ED_view3d_project_float_v2_m4(const ARegion *region,
                                    const float co[3],
                                    float r_co[2],
-                                   float mat[4][4])
+                                   const float mat[4][4])
 {
   float vec4[4];
 
@@ -52,7 +52,7 @@ void ED_view3d_project_float_v2_m4(const ARegion *region,
 void ED_view3d_project_float_v3_m4(const ARegion *region,
                                    const float co[3],
                                    float r_co[3],
-                                   float mat[4][4])
+                                   const float mat[4][4])
 {
   float vec4[4];