diff --git a/space_view3d_math_vis/draw.py b/space_view3d_math_vis/draw.py
index 1875afcd2f5054feaec5cf58bfd86222bc6538b3..8a8cfa7ac877497288b01ab7db41beb4375da627 100644
--- a/space_view3d_math_vis/draw.py
+++ b/space_view3d_math_vis/draw.py
@@ -113,7 +113,7 @@ def draw_callback_px():
     # lines
     if data_vector_array:
         for key, vec in data_vector_array.items():
-            if vec and len(vec) > 0:
+            if vec:
                 draw_text(key, vec[0])
 
     # matrix