diff --git a/BAN/include/BAN/Array.h b/BAN/include/BAN/Array.h
index 6c0be77f..b17d3c94 100644
--- a/BAN/include/BAN/Array.h
+++ b/BAN/include/BAN/Array.h
@@ -35,7 +35,7 @@ namespace BAN
 		constexpr T& front();
 
 		Span<T> span() { return Span(m_data, size()); }
-		const Span<T> span() const { return Span(m_data, size()); }
+		Span<const T> span() const { return Span(m_data, size()); }
 
 		constexpr size_type size() const;
 
diff --git a/BAN/include/BAN/Vector.h b/BAN/include/BAN/Vector.h
index 7583c175..7e90c0f5 100644
--- a/BAN/include/BAN/Vector.h
+++ b/BAN/include/BAN/Vector.h
@@ -56,7 +56,7 @@ namespace BAN
 		bool contains(const T&) const;
 
 		Span<T> span() { return Span(m_data, m_size); }
-		const Span<T> span() const { return Span(m_data, m_size); }
+		Span<const T> span() const { return Span(m_data, m_size); }
 
 		const T& operator[](size_type) const;
 		T& operator[](size_type);
diff --git a/userspace/programs/ProgramLauncher/main.cpp b/userspace/programs/ProgramLauncher/main.cpp
index c60388f1..c833c582 100644
--- a/userspace/programs/ProgramLauncher/main.cpp
+++ b/userspace/programs/ProgramLauncher/main.cpp
@@ -99,7 +99,7 @@ static const BAN::Vector<BAN::String> get_program_list()
 	return programs;
 }
 
-static BAN::Vector<BAN::StringView> get_filtered_program_list(BAN::Span<BAN::String> program_list, BAN::StringView prompt)
+static BAN::Vector<BAN::StringView> get_filtered_program_list(BAN::Span<const BAN::String> program_list, BAN::StringView prompt)
 {
 	BAN::Vector<BAN::StringView> filtered_list;
 	for (const auto& program : program_list)
diff --git a/userspace/programs/Shell/Execute.h b/userspace/programs/Shell/Execute.h
index 0cb1766b..da2ad3eb 100644
--- a/userspace/programs/Shell/Execute.h
+++ b/userspace/programs/Shell/Execute.h
@@ -52,7 +52,7 @@ private:
 		Command command;
 		BAN::Span<const BAN::String> arguments;
 		BAN::Span<const Environment> environments;
-		BAN::Span<Redirection> redirections;
+		BAN::Span<const Redirection> redirections;
 		int fd_in;
 		int fd_out;
 		bool background;