diff --git a/poincare/src/matrix_identity.cpp b/poincare/src/matrix_identity.cpp
index 4a4c082cc..d37f40eaf 100644
--- a/poincare/src/matrix_identity.cpp
+++ b/poincare/src/matrix_identity.cpp
@@ -58,7 +58,7 @@ Expression MatrixIdentity::shallowReduce(ExpressionNode::ReductionContext reduct
   if (dimension.isNegative() || dimension.isZero()) {
     return replaceWithUndefinedInPlace();
   }
-  if (Integer::NaturalOrder(dimension, Integer(Integer::k_maxExtractableInteger)) > 0) {
+  if (Integer::NaturalOrder(dimension, Integer(15)) > 0) { // For now, after 15 it would fill the pool
     return *this;
   }
   int dim = dimension.extractedInt();