diff --git a/src/util/system.cpp b/src/util/system.cpp
index 9b3bd46b386..76d63074e44 100644
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -366,14 +366,12 @@ bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::strin
     }
 
     // we do not allow -includeconf from command line
-    bool success = true;
     if (auto* includes = util::FindKey(m_settings.command_line_options, "includeconf")) {
-        for (const auto& include : util::SettingsSpan(*includes)) {
-            error += "-includeconf cannot be used from commandline; -includeconf=" + include.get_str() + "\n";
-            success = false;
-        }
+        const auto& include{*util::SettingsSpan(*includes).begin()}; // pick first value as example
+        error = "-includeconf cannot be used from commandline; -includeconf=" + include.write();
+        return false;
     }
-    return success;
+    return true;
 }
 
 std::optional<unsigned int> ArgsManager::GetArgFlags(const std::string& name) const
diff --git a/test/functional/feature_includeconf.py b/test/functional/feature_includeconf.py
index f22b7f266ac..448182ededb 100755
--- a/test/functional/feature_includeconf.py
+++ b/test/functional/feature_includeconf.py
@@ -42,7 +42,14 @@ class IncludeConfTest(BitcoinTestFramework):
 
         self.log.info("-includeconf cannot be used as command-line arg")
         self.stop_node(0)
-        self.nodes[0].assert_start_raises_init_error(extra_args=["-includeconf=relative2.conf"], expected_msg="Error: Error parsing command line arguments: -includeconf cannot be used from commandline; -includeconf=relative2.conf")
+        self.nodes[0].assert_start_raises_init_error(
+            extra_args=['-noincludeconf=0'],
+            expected_msg='Error: Error parsing command line arguments: -includeconf cannot be used from commandline; -includeconf=true',
+        )
+        self.nodes[0].assert_start_raises_init_error(
+            extra_args=['-includeconf=relative2.conf', '-includeconf=no_warn.conf'],
+            expected_msg='Error: Error parsing command line arguments: -includeconf cannot be used from commandline; -includeconf="relative2.conf"',
+        )
 
         self.log.info("-includeconf cannot be used recursively. subversion should end with 'main; relative)/'")
         with open(os.path.join(self.options.tmpdir, "node0", "relative.conf"), "a", encoding="utf8") as f: