diff --git a/changelog/14675.improvement.rst b/changelog/14675.improvement.rst
new file mode 100644
index 00000000000..6a9d4808cc0
--- /dev/null
+++ b/changelog/14675.improvement.rst
@@ -0,0 +1 @@
+Allowed integer values for :confval:`truncation_limit_lines` and :confval:`truncation_limit_chars` in configurations.
diff --git a/src/_pytest/assertion/__init__.py b/src/_pytest/assertion/__init__.py
index e33f8b29609..e8d1e3f77dd 100644
--- a/src/_pytest/assertion/__init__.py
+++ b/src/_pytest/assertion/__init__.py
@@ -49,11 +49,13 @@ def pytest_addoption(parser: Parser) -> None:
 
     parser.addini(
         "truncation_limit_lines",
+        type="int",
         default=None,
         help="Set threshold of LINES after which truncation will take effect",
     )
     parser.addini(
         "truncation_limit_chars",
+        type="int",
         default=None,
         help=("Set threshold of CHARS after which truncation will take effect"),
     )