diff --git a/borgmatic/borg/environment.py b/borgmatic/borg/environment.py
index 1b14369a..ee438955 100644
--- a/borgmatic/borg/environment.py
+++ b/borgmatic/borg/environment.py
@@ -14,6 +14,7 @@ OPTION_TO_ENVIRONMENT_VARIABLE = {
 DEFAULT_BOOL_OPTION_TO_ENVIRONMENT_VARIABLE = {
     'relocated_repo_access_is_ok': 'BORG_RELOCATED_REPO_ACCESS_IS_OK',
     'unknown_unencrypted_repo_access_is_ok': 'BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK',
+    'check_i_know_what_i_am_doing': 'BORG_CHECK_I_KNOW_WHAT_I_AM_DOING',
 }
 
 
@@ -35,6 +36,6 @@ def make_environment(storage_config):
         environment_variable_name,
     ) in DEFAULT_BOOL_OPTION_TO_ENVIRONMENT_VARIABLE.items():
         value = storage_config.get(option_name, False)
-        environment[environment_variable_name] = 'yes' if value else 'no'
+        environment[environment_variable_name] = 'YES' if value else 'NO'
 
     return environment
diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index 3f1b3cb4..84b512ca 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -405,6 +405,12 @@ properties:
                     Bypass Borg error about a previously unknown unencrypted
                     repository. Defaults to false.
                 example: true
+            check_i_know_what_i_am_doing:
+                type: boolean
+                description: |
+                    Bypass Borg confirmation about check with repair option.
+                    Defaults to false.
+                example: true
             extra_borg_options:
                 type: object
                 additionalProperties: false
diff --git a/tests/unit/borg/test_environment.py b/tests/unit/borg/test_environment.py
index 4cef39b9..a099c776 100644
--- a/tests/unit/borg/test_environment.py
+++ b/tests/unit/borg/test_environment.py
@@ -23,15 +23,22 @@ def test_make_environment_without_configuration_should_only_set_default_environm
     environment = module.make_environment({})
 
     assert environment == {
-        'BORG_RELOCATED_REPO_ACCESS_IS_OK': 'no',
-        'BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK': 'no',
+        'BORG_RELOCATED_REPO_ACCESS_IS_OK': 'NO',
+        'BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK': 'NO',
+        'BORG_CHECK_I_KNOW_WHAT_I_AM_DOING': 'NO',
     }
 
 
 def test_make_environment_with_relocated_repo_access_should_override_default():
     environment = module.make_environment({'relocated_repo_access_is_ok': True})
 
-    assert environment.get('BORG_RELOCATED_REPO_ACCESS_IS_OK') == 'yes'
+    assert environment.get('BORG_RELOCATED_REPO_ACCESS_IS_OK') == 'YES'
+
+
+def test_make_environment_check_i_know_what_i_am_doing_should_override_default():
+    environment = module.make_environment({'relocated_repo_access_is_ok': True})
+
+    assert environment.get('BORG_RELOCATED_REPO_ACCESS_IS_OK') == 'YES'
 
 
 def test_make_environment_with_integer_variable_value():