diff --git a/src/HGQ/proxy/unary_lut.py b/src/HGQ/proxy/unary_lut.py
index 9a3d98f..76e529a 100644
--- a/src/HGQ/proxy/unary_lut.py
+++ b/src/HGQ/proxy/unary_lut.py
@@ -10,7 +10,7 @@
 from HGQ.proxy.precision_derivation import get_input_kifs, get_produced_kif, get_result_kifRS
 from HGQ.utils import apf_to_tuple, tuple_to_apf
 
-LUT_SIZE_LIMITATION = int(os.environ.get('LUT_SIZE_LIMITATION', 2**20))
+LUT_SIZE_LIMITATION = int(os.environ.get('LUT_SIZE_LIMITATION', 2**12))
 
 
 class UnaryLUT(Layer):