diff --git a/application/editoruipanels.cpp b/application/editoruipanels.cpp
index 966f14fb..db85b2c4 100644
--- a/application/editoruipanels.cpp
+++ b/application/editoruipanels.cpp
@@ -237,7 +237,7 @@ void itemproperties_panel::update_group()
 			for (auto const &name : names)
 			{
 				// NOTE: first calculation runs over two instances of the same name, but, eh
-				auto const prefixlength{len_common_prefix(m_groupprefix, name)};
+				auto const prefixlength{len_common_prefix(m_groupprefix, name.get())};
 				if (prefixlength > 0)
 				{
 					m_groupprefix = m_groupprefix.substr(0, prefixlength);
diff --git a/scripting/PyInt.cpp b/scripting/PyInt.cpp
index 007f732a..1beacf39 100644
--- a/scripting/PyInt.cpp
+++ b/scripting/PyInt.cpp
@@ -412,7 +412,7 @@ auto python_taskqueue::fetch_renderer(std::string const Renderer) -> PyObject *
 		return lookup->second;
 	}
 	// try to load specified renderer class
-	auto const path{substr_path(Renderer)};
+	std::string const path{substr_path(Renderer)};
 	auto const file{Renderer.substr(path.size())};
 	PyObject *renderer{nullptr};
 	PyObject *rendererarguments{nullptr};
diff --git a/utilities/utilities.cpp b/utilities/utilities.cpp
index 269468d5..23160586 100644
--- a/utilities/utilities.cpp
+++ b/utilities/utilities.cpp
@@ -398,13 +398,10 @@ std::string_view substr_path(std::string const &Filename)
 }
 
 // returns length of common prefix between two provided strings
-std::ptrdiff_t len_common_prefix(std::string const &Left, std::string const &Right)
+std::ptrdiff_t len_common_prefix(std::string_view a, std::string_view b)
 {
-
-	auto const *left{Left.data()};
-	auto const *right{Right.data()};
-	// compare up to the length of the shorter string
-	return (Right.size() <= Left.size() ? std::distance(right, std::mismatch(right, right + Right.size(), left).first) : std::distance(left, std::mismatch(left, left + Left.size(), right).first));
+	auto [it1, it2] = std::ranges::mismatch(a, b);
+	return std::distance(a.begin(), it1);
 }
 
 // returns true if provided string ends with another provided string
diff --git a/utilities/utilities.h b/utilities/utilities.h
index 2b1e61c7..2dcb4010 100644
--- a/utilities/utilities.h
+++ b/utilities/utilities.h
@@ -224,7 +224,7 @@ void replace_slashes(std::string &Filename);
 std::string_view substr_path(std::string const &Filename);
 
 // returns common prefix of two provided strings
-std::ptrdiff_t len_common_prefix(std::string const &Left, std::string const &Right);
+std::ptrdiff_t len_common_prefix(std::string_view a, std::string_view b);
 
 // returns true if provided string ends with another provided string
 bool ends_with(std::string_view String, std::string_view Suffix);