diff --git a/src/primitives.py b/src/primitives.py
index e5898005e76a4add64d7a84e5d19d5ee2e6c1a33..8c08d9c971e4213c726df2f5b736df1344084029 100644
--- a/src/primitives.py
+++ b/src/primitives.py
@@ -6,12 +6,6 @@ import pymbolic.mapper.stringifier
 
 VALID_CONSTANT_CLASSES = [int, float, complex]
 
-try: 
-    import numpy
-    VALID_CONSTANT_CLASSES.append(numpy.ndarray)
-except ImportError:
-    pass
-