diff --git a/heat/sparse/dcsr_matrix.py b/heat/sparse/dcsr_matrix.py
index 577a36a489..38c0245ea9 100644
--- a/heat/sparse/dcsr_matrix.py
+++ b/heat/sparse/dcsr_matrix.py
@@ -347,6 +347,7 @@ def __str__(self) -> str:
 
         print_string = (
             f"DCSR_matrix(indices={self.indices},\n"
+            f"            indptr={self.indptr},\n"
             f"            data={self.data},\n"
             f"            size={size}, nnz={nnz}, split={self.__split})"
         )