diff --git a/progs/demos/shadowtex.c b/progs/demos/shadowtex.c
index c2d40bda74e..b6bdbe467c5 100644
--- a/progs/demos/shadowtex.c
+++ b/progs/demos/shadowtex.c
@@ -658,6 +658,7 @@ Display(void)
          glDisable(GL_FRAGMENT_PROGRAM_ARB);
       }
 
+      glDisable(GL_TEXTURE_1D);
       glDisable(GL_TEXTURE_2D);
    }