diff --git a/src/napatrackmater/Trackvector.py b/src/napatrackmater/Trackvector.py
index 03ff587..beeafa5 100644
--- a/src/napatrackmater/Trackvector.py
+++ b/src/napatrackmater/Trackvector.py
@@ -3399,7 +3399,7 @@ def plot_at_mitosis_time(matrix_directory, save_dir, dataset_name, channel):
 
 
 def plot_histograms_for_groups(
-    matrix_directory, save_dir, dataset_name, channel, name="all"
+    matrix_directory, save_dir, dataset_name, channel, name="all", plot_show=True
 ):
 
     files = os.listdir(matrix_directory)
@@ -3447,7 +3447,8 @@ def plot_histograms_for_groups(
             plt.legend()
             fig_name = f"{channel}{group_name}_{name}_distribution.png"
             plt.savefig(os.path.join(save_dir, fig_name), dpi=300, bbox_inches="tight")
-            plt.show()
+            if plot_show:
+                plt.show()
 
 
 def plot_histograms_for_cell_type_groups(
diff --git a/src/napatrackmater/_version.py b/src/napatrackmater/_version.py
index 1304793..af6b385 100644
--- a/src/napatrackmater/_version.py
+++ b/src/napatrackmater/_version.py
@@ -1,2 +1,2 @@
-__version__ = version = "5.5.7"
-__version_tuple__ = version_tuple = (5, 5, 7)
+__version__ = version = "5.5.8"
+__version_tuple__ = version_tuple = (5, 5, 8)