diff --git a/src/ahriman/application/handlers/setup.py b/src/ahriman/application/handlers/setup.py
index e5d109db..6d2424b9 100644
--- a/src/ahriman/application/handlers/setup.py
+++ b/src/ahriman/application/handlers/setup.py
@@ -133,7 +133,9 @@ class Setup(Handler):
             repository(str): repository name
             paths(RepositoryPaths): repository paths instance
         """
-        configuration = Configuration()
+        # allow_no_value=True is required because pacman uses boolean configuration in which just keys present
+        # (e.g. NoProgressBar) which will lead to exception
+        configuration = Configuration(allow_no_value=True)
         # preserve case
         # stupid mypy thinks that it is impossible
         configuration.optionxform = lambda key: key  # type: ignore
diff --git a/src/ahriman/core/configuration.py b/src/ahriman/core/configuration.py
index 020c7cf6..8602ed9a 100644
--- a/src/ahriman/core/configuration.py
+++ b/src/ahriman/core/configuration.py
@@ -70,11 +70,15 @@ class Configuration(configparser.RawConfigParser):
     ARCHITECTURE_SPECIFIC_SECTIONS = ["build", "sign", "web"]
     SYSTEM_CONFIGURATION_PATH = Path(sys.prefix) / "share" / "ahriman" / "settings" / "ahriman.ini"
 
-    def __init__(self) -> None:
+    def __init__(self, allow_no_value: bool = False) -> None:
         """
         default constructor. In the most cases must not be called directly
+
+        Args:
+            allow_no_value(bool): copies ``configparser.RawConfigParser`` behaviour. In case if it is set to ``True``,
+                the keys without values will be allowed
         """
-        configparser.RawConfigParser.__init__(self, allow_no_value=True, converters={
+        configparser.RawConfigParser.__init__(self, allow_no_value=allow_no_value, converters={
             "list": self.__convert_list,
             "path": self.__convert_path,
         })
diff --git a/src/ahriman/core/report/report_trigger.py b/src/ahriman/core/report/report_trigger.py
index 35eadac5..984da075 100644
--- a/src/ahriman/core/report/report_trigger.py
+++ b/src/ahriman/core/report/report_trigger.py
@@ -43,7 +43,7 @@ class ReportTrigger(Trigger):
             configuration(Configuration): configuration instance
         """
         Trigger.__init__(self, architecture, configuration)
-        self.targets = configuration.getlist("report", "target")
+        self.targets = configuration.getlist("report", "target", fallback=[])
 
     def on_result(self, result: Result, packages: Iterable[Package]) -> None:
         """
diff --git a/src/ahriman/core/sign/gpg.py b/src/ahriman/core/sign/gpg.py
index 398d751f..c9d534a6 100644
--- a/src/ahriman/core/sign/gpg.py
+++ b/src/ahriman/core/sign/gpg.py
@@ -97,7 +97,7 @@ class GPG(LazyLogging):
             Tuple[Set[SignSettings], Optional[str]]: tuple of sign targets and default PGP key
         """
         targets: Set[SignSettings] = set()
-        for option in configuration.getlist("sign", "target"):
+        for option in configuration.getlist("sign", "target", fallback=[]):
             target = SignSettings.from_option(option)
             if target == SignSettings.Disabled:
                 continue
diff --git a/src/ahriman/core/upload/http_upload.py b/src/ahriman/core/upload/http_upload.py
index 8ecb3cd6..9bb3dc35 100644
--- a/src/ahriman/core/upload/http_upload.py
+++ b/src/ahriman/core/upload/http_upload.py
@@ -33,7 +33,7 @@ class HttpUpload(Upload):
     helper for the http based uploads
 
     Attributes:
-        auth(Tuple[str, str]): HTTP auth object
+        auth(Optional[Tuple[str, str]]): HTTP auth object if set
         timeout(int): HTTP request timeout in seconds
     """
 
@@ -47,9 +47,9 @@ class HttpUpload(Upload):
             section(str): configuration section name
         """
         Upload.__init__(self, architecture, configuration)
-        password = configuration.get(section, "password")
-        username = configuration.get(section, "username")
-        self.auth = (password, username)
+        password = configuration.get(section, "password", fallback=None)
+        username = configuration.get(section, "username", fallback=None)
+        self.auth = (password, username) if password and username else None
         self.timeout = configuration.getint(section, "timeout", fallback=30)
 
     @staticmethod
diff --git a/src/ahriman/core/upload/upload_trigger.py b/src/ahriman/core/upload/upload_trigger.py
index 1a306a5a..c993e4ac 100644
--- a/src/ahriman/core/upload/upload_trigger.py
+++ b/src/ahriman/core/upload/upload_trigger.py
@@ -43,7 +43,7 @@ class UploadTrigger(Trigger):
             configuration(Configuration): configuration instance
         """
         Trigger.__init__(self, architecture, configuration)
-        self.targets = configuration.getlist("upload", "target")
+        self.targets = configuration.getlist("upload", "target", fallback=[])
 
     def on_result(self, result: Result, packages: Iterable[Package]) -> None:
         """