diff --git a/src/slic3r/GUI/GLTexture.cpp b/src/slic3r/GUI/GLTexture.cpp
index 7bf4d008d4..d670181b1b 100644
--- a/src/slic3r/GUI/GLTexture.cpp
+++ b/src/slic3r/GUI/GLTexture.cpp
@@ -663,7 +663,9 @@ void GLTexture::render_texture(unsigned int tex_id, float left, float right, flo
 void GLTexture::render_sub_texture(unsigned int tex_id, float left, float right, float bottom, float top, const GLTexture::Quad_UVs& uvs)
 {
     glsafe(::glEnable(GL_BLEND));
-    glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
+    // Orca: fix washed-out toolbar icons on Wayland: keep destination alpha at 1.0 so the compositor
+    // does not treat anti-aliased icon edges as window transparency.
+    glsafe(::glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA));
 
     glsafe(::glEnable(GL_TEXTURE_2D));
     glsafe(::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE));