diff --git a/src/ahriman/application/handlers/setup.py b/src/ahriman/application/handlers/setup.py
index 361861ec..2d9aa3c6 100644
--- a/src/ahriman/application/handlers/setup.py
+++ b/src/ahriman/application/handlers/setup.py
@@ -251,7 +251,7 @@ class Setup(Handler):
 
         content = f"PACKAGER='{packager}'\n"
         if makeflags_jobs:
-            content += """MAKEFLAGS="-j$(nproc)"\n"""
+            content += "MAKEFLAGS=\"-j$(nproc)\"\n"
 
         uid, _ = paths.root_owner
         home_dir = Path(getpwuid(uid).pw_dir)
diff --git a/src/ahriman/core/auth/oauth.py b/src/ahriman/core/auth/oauth.py
index 49313ea7..8172e29a 100644
--- a/src/ahriman/core/auth/oauth.py
+++ b/src/ahriman/core/auth/oauth.py
@@ -69,8 +69,8 @@ class OAuth(Mapping):
         Returns:
             str: login control as html code to insert
         """
-        return f"""<a class="nav-link" href="/api/v1/login" title="login via OAuth2"><i class="bi bi-{
-            self.icon}"></i> login</a>"""
+        return f"<a class=\"nav-link\" href=\"/api/v1/login\" title=\"login via OAuth2\"><i class=\"bi bi-{
+            self.icon}\"></i> login</a>"
 
     @staticmethod
     def get_provider(name: str) -> type[aioauth_client.OAuth2Client]:
diff --git a/src/ahriman/models/package.py b/src/ahriman/models/package.py
index 6665b2e3..c9fb5e4c 100644
--- a/src/ahriman/models/package.py
+++ b/src/ahriman/models/package.py
@@ -375,7 +375,7 @@ class Package(LazyLogging):
         Returns:
             str: print-friendly string
         """
-        details = "" if self.is_single_package else f""" ({" ".join(sorted(self.packages.keys()))})"""
+        details = "" if self.is_single_package else f" ({" ".join(sorted(self.packages.keys()))})"
         return f"{self.base}{details}"
 
     def vercmp(self, version: str) -> int:
diff --git a/src/ahriman/models/pkgbuild_patch.py b/src/ahriman/models/pkgbuild_patch.py
index b726d684..3f87d1bb 100644
--- a/src/ahriman/models/pkgbuild_patch.py
+++ b/src/ahriman/models/pkgbuild_patch.py
@@ -147,7 +147,7 @@ class PkgbuildPatch:
         """
         if "$" in source:
             # copy from library method with double quotes instead
-            return f"""\"{source.replace("\"", "'\"'")}\""""
+            return f"\"{source.replace("\"", "'\"'")}\""
         # otherwise just return normal call
         return shlex.quote(source)
 
@@ -195,13 +195,13 @@ class PkgbuildPatch:
         """
         if isinstance(self.value, list):  # list like
             value = " ".join(map(self.quote, self.value))
-            return f"""{self.key}=({value})"""
+            return f"{self.key}=({value})"
         if self.is_plain_diff:  # no additional logic for plain diffs
             return self.value
         # we suppose that function values are only supported in string-like values
         if self.is_function:
             return f"{self.key} {self.value}"  # no quoting enabled here
-        return f"""{self.key}={self.quote(self.value)}"""
+        return f"{self.key}={self.quote(self.value)}"
 
     def substitute(self, variables: dict[str, str]) -> str | list[str]:
         """