diff --git a/smt/applications/tests/test_mixed_integer.py b/smt/applications/tests/test_mixed_integer.py
index d05f26b8f..ba0b86aa4 100644
--- a/smt/applications/tests/test_mixed_integer.py
+++ b/smt/applications/tests/test_mixed_integer.py
@@ -11,8 +11,6 @@
 
 try:
     import matplotlib
-
-    matplotlib.use("Agg")
     NO_MATPLOTLIB = False
 except ImportError:
     NO_MATPLOTLIB = True