diff --git a/src/falco.cpp b/src/falco.cpp
index d9356eb..14fe9b3 100644
--- a/src/falco.cpp
+++ b/src/falco.cpp
@@ -374,7 +374,8 @@ main(int argc, char *argv[]) {
     app.add_option("-m,--mem", buffer_size,
                    "Input memory buffer size (G/M/K units ok)")
       ->check(CLI::Range(min_buf_size, max_buf_size))
-      ->option_text(std::format("[{}]", size_to_units(buffer_size_default)))
+      ->option_text(std::format("[{}]",
+                                size_to_units(buffer_size_default, "")))
       ->capture_default_str()
       ->transform(size_from_units);
     app.add_flag("-v,--verbose", verbose, "Print more info about the run")
@@ -531,7 +532,7 @@ main(int argc, char *argv[]) {
                    "threads requested: {}\n"
                    "input memory buffer size: {}\n"
                    "max analyzable read length: {}\n",
-                   n_threads, size_to_units(buffer_size),
+                   n_threads, size_to_units(buffer_size, "B"),
                    size_to_units(max_read_length, "bp"));
       std::println("Analyses\n{}", mode.string_verbose());
       std::println("Input files");
diff --git a/src/falco_file_format.hpp b/src/falco_file_format.hpp
index 2bb5253..8d1f606 100644
--- a/src/falco_file_format.hpp
+++ b/src/falco_file_format.hpp
@@ -52,22 +52,22 @@ NLOHMANN_JSON_SERIALIZE_ENUM(
   })
 // clang-format on
 
-[[nodiscard]] constexpr inline auto
+[[nodiscard]] inline constexpr auto
 is_mapped_reads(const file_format f) {
   return f == file_format::sam || f == file_format::bam;
 }
 
-[[nodiscard]] constexpr inline auto
+[[nodiscard]] inline constexpr auto
 is_bam(const file_format f) {
   return f == file_format::bam;
 }
 
-[[nodiscard]] constexpr inline auto
+[[nodiscard]] inline constexpr auto
 is_bgzf(const file_format f) {
   return f == file_format::bam || f == file_format::fastq_bgzf;
 }
 
-[[nodiscard]] constexpr inline auto
+[[nodiscard]] inline constexpr auto
 is_plain(const file_format f) {
   return f == file_format::sam || f == file_format::fastq;
 }
diff --git a/src/kmer_counter.cpp b/src/kmer_counter.cpp
index e457cd8..e950555 100644
--- a/src/kmer_counter.cpp
+++ b/src/kmer_counter.cpp
@@ -66,7 +66,7 @@ gamma_p_series(const double a, const double x) -> double {
   return sum * std::exp(-x + a * std::log(x) - std::lgamma(a));
 }
 
-[[nodiscard]] static constexpr inline auto
+[[nodiscard]] static inline constexpr auto
 safe_floor(const auto x, const auto floor_val) {
   return std::abs(x) < floor_val ? floor_val : x;
 }