diff --git a/src/slic3r/GUI/Jobs/CreateFontNameImageJob.cpp b/src/slic3r/GUI/Jobs/CreateFontNameImageJob.cpp
index 0defecffc..6bcedffc0 100644
--- a/src/slic3r/GUI/Jobs/CreateFontNameImageJob.cpp
+++ b/src/slic3r/GUI/Jobs/CreateFontNameImageJob.cpp
@@ -97,16 +97,15 @@ void CreateFontImageJob::finalize(bool canceled, std::exception_ptr &)
     if (canceled) return;
     
     // upload texture on GPU
-    GLuint tex_id;
-    GLenum target = GL_TEXTURE_2D, format = GL_ALPHA, type = GL_UNSIGNED_BYTE;
-    GLint  level = 0, border = 0;
+    const GLenum target = GL_TEXTURE_2D;
     glsafe(::glBindTexture(target, m_input.texture_id));
 
     GLint 
         w = m_tex_size.x(), h = m_tex_size.y(),
         xoffset = m_input.size.x() - m_tex_size.x(), // arrange right
         yoffset = m_input.size.y() * m_input.index;
-    glsafe(::glTexSubImage2D(target, level, xoffset, yoffset, w, h, format, type, m_result.data()));
+    glsafe(::glTexSubImage2D(target, m_input.level, xoffset, yoffset, w, h,
+                             m_input.format, m_input.type, m_result.data()));
 
     // bind default texture
     GLuint no_texture_id = 0;
diff --git a/src/slic3r/GUI/Jobs/CreateFontNameImageJob.hpp b/src/slic3r/GUI/Jobs/CreateFontNameImageJob.hpp
index 5c001fbc9..1e380fc6d 100644
--- a/src/slic3r/GUI/Jobs/CreateFontNameImageJob.hpp
+++ b/src/slic3r/GUI/Jobs/CreateFontNameImageJob.hpp
@@ -21,6 +21,7 @@ struct FontImageData
     wxString       font_name;
     wxFontEncoding encoding;
     // texture for copy result to
+    // texture MUST BE initialized
     GLuint         texture_id;
     // Index of face name, define place in texture
     size_t index;
@@ -31,6 +32,10 @@ struct FontImageData
     // bigger value create darker image
     // divide value 255
     unsigned char gray_level = 5;
+
+    // texture meta data
+    GLenum format = GL_ALPHA, type = GL_UNSIGNED_BYTE;
+    GLint  level = 0, border = 0;
 };
 
 /// <summary>