diff --git a/jass/models/plots.py b/jass/models/plots.py
index 8f80635d5d8a17b249574b44ae9ac90a735f8073..8a95ebebbf7ef21f88a3c1a0b1fa674830bf4d49 100644
--- a/jass/models/plots.py
+++ b/jass/models/plots.py
@@ -234,7 +234,7 @@ def create_quadrant_plot(work_file_path: str,
     alim = np.ceil(pv_t.JASS_PVAL.loc[pv_t.color == "#f77189"].max() + 2)
     if np.isnan(alim):
         alim = 10
-    plt.plot([0, alim, 0, alim])
+    plt.axis([0, alim, 0, alim])
     # légendes abcisse et ordonnee
     plt.xlabel('-log10(P) for univariate tests', fontsize=12)
     # plt.show()