diff --git a/vtk-freetype-2.10.3-replace-FT_CALLBACK_DEF.patch b/vtk-freetype-2.10.3-replace-FT_CALLBACK_DEF.patch
new file mode 100644
index 0000000..ef9341f
--- /dev/null
+++ b/vtk-freetype-2.10.3-replace-FT_CALLBACK_DEF.patch
@@ -0,0 +1,37 @@
+Index: VTK-9.0.1/Rendering/FreeType/vtkFreeTypeTools.cxx
+===================================================================
+--- VTK-9.0.1.orig/Rendering/FreeType/vtkFreeTypeTools.cxx
++++ VTK-9.0.1/Rendering/FreeType/vtkFreeTypeTools.cxx
+@@ -378,7 +378,7 @@ FTC_CMapCache* vtkFreeTypeTools::GetCMap
+ }
+ 
+ //----------------------------------------------------------------------------
+-FT_CALLBACK_DEF(FT_Error)
++extern "C" FT_Error
+ vtkFreeTypeToolsFaceRequester(
+   FTC_FaceID face_id, FT_Library lib, FT_Pointer request_data, FT_Face* face)
+ {
+Index: VTK-9.0.1/Rendering/FreeTypeFontConfig/vtkFontConfigFreeTypeTools.cxx
+===================================================================
+--- VTK-9.0.1.orig/Rendering/FreeTypeFontConfig/vtkFontConfigFreeTypeTools.cxx
++++ VTK-9.0.1/Rendering/FreeTypeFontConfig/vtkFontConfigFreeTypeTools.cxx
+@@ -26,10 +26,8 @@
+ 
+ vtkStandardNewMacro(vtkFontConfigFreeTypeTools);
+ 
+-namespace
+-{
+ // The FreeType face requester callback:
+-FT_CALLBACK_DEF(FT_Error)
++extern "C" FT_Error
+ vtkFontConfigFreeTypeToolsFaceRequester(
+   FTC_FaceID face_id, FT_Library lib, FT_Pointer request_data, FT_Face* face)
+ {
+@@ -71,7 +69,6 @@ vtkFontConfigFreeTypeToolsFaceRequester(
+ 
+   return static_cast<FT_Error>(0);
+ }
+-} // end anon namespace
+ 
+ void vtkFontConfigFreeTypeTools::PrintSelf(ostream& os, vtkIndent indent)
+ {
diff --git a/vtk.changes b/vtk.changes
index b0f7651..cfa24ad 100644
--- a/vtk.changes
+++ b/vtk.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Oct 20 14:06:35 UTC 2020 - Ismail Dönmez <idonmez@suse.com>
+
+- Add vtk-freetype-2.10.3-replace-FT_CALLBACK_DEF.patch to fix
+  compilation with FreeType 2.10.3+
+
 -------------------------------------------------------------------
 Thu Jul 16 16:55:31 UTC 2020 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
 
diff --git a/vtk.spec b/vtk.spec
index a9a0aed..c9a55d7 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -148,6 +148,8 @@ Patch12:        0001-Guard-glPointSize-with-GL_ES_VERSION_3_0.patch
 Patch13:        0001-Fix-PyVTKAddFile_-function-signature-mismatch.patch
 # PATCH-FIX-UPSTREAM -- https://gitlab.kitware.com/vtk/vtk/-/merge_requests/7115
 Patch14:        0001-Replace-invalid-GL_LINE-with-GL_LINES-for-glDrawArra.patch
+# PATCH-FIX-UPSTREAM -- https://gitlab.kitware.com/vtk/vtk/-/issues/18033
+Patch15:        vtk-freetype-2.10.3-replace-FT_CALLBACK_DEF.patch
 BuildRequires:  R-base-devel
 BuildRequires:  chrpath
 BuildRequires:  cmake >= 3.4
@@ -404,6 +406,7 @@ languages.
 %endif
 %patch13 -p1
 %patch14 -p1
+%patch15 -p1
 
 # Replace relative path ../../../../VTKData with %%{_datadir}/vtkdata
 # otherwise it will break on symlinks.