diff --git a/src/include/units/physical/si/prefixes.h b/src/include/units/physical/si/prefixes.h
index 4a0dcf99..449b5754 100644
--- a/src/include/units/physical/si/prefixes.h
+++ b/src/include/units/physical/si/prefixes.h
@@ -29,26 +29,26 @@ namespace units::si {
 struct prefix : prefix_family {};
 
 // clang-format off
-struct yocto  : units::prefix<yocto,  prefix, "y",      ratio<1, 1, -24>> {};
-struct zepto  : units::prefix<zepto,  prefix, "z",      ratio<1, 1, -21>> {};
-struct atto   : units::prefix<atto,   prefix, "a",      ratio<1, 1, -18>> {};
-struct femto  : units::prefix<femto,  prefix, "f",      ratio<1, 1, -15>> {};
-struct pico   : units::prefix<pico,   prefix, "p",      ratio<1, 1, -12>> {};
-struct nano   : units::prefix<nano,   prefix, "n",      ratio<1, 1,  -9>> {};
-struct micro  : units::prefix<micro,  prefix, "\u00b5", ratio<1, 1,  -6>> {};
-struct milli  : units::prefix<milli,  prefix, "m",      ratio<1, 1,  -3>> {};
-struct centi  : units::prefix<centi,  prefix, "c",      ratio<1, 1,  -2>> {};
-struct deci   : units::prefix<deci,   prefix, "d",      ratio<1, 1,  -1>> {};
-struct deca   : units::prefix<deca,   prefix, "da",     ratio<1, 1,   1>> {};
-struct hecto  : units::prefix<hecto,  prefix, "h",      ratio<1, 1,   2>> {};
-struct kilo   : units::prefix<kilo,   prefix, "k",      ratio<1, 1,   3>> {};
-struct mega   : units::prefix<mega,   prefix, "M",      ratio<1, 1,   6>> {};
-struct giga   : units::prefix<giga,   prefix, "G",      ratio<1, 1,   9>> {};
-struct tera   : units::prefix<tera,   prefix, "T",      ratio<1, 1,  12>> {};
-struct peta   : units::prefix<peta,   prefix, "P",      ratio<1, 1,  15>> {};
-struct exa    : units::prefix<exa,    prefix, "E",      ratio<1, 1,  18>> {};
-struct zetta  : units::prefix<zetta,  prefix, "Z",      ratio<1, 1,  21>> {};
-struct yotta  : units::prefix<yotta,  prefix, "Y",      ratio<1, 1,  24>> {};
+struct yocto  : units::prefix<yocto,  prefix, "y",             ratio<1, 1, -24>> {};
+struct zepto  : units::prefix<zepto,  prefix, "z",             ratio<1, 1, -21>> {};
+struct atto   : units::prefix<atto,   prefix, "a",             ratio<1, 1, -18>> {};
+struct femto  : units::prefix<femto,  prefix, "f",             ratio<1, 1, -15>> {};
+struct pico   : units::prefix<pico,   prefix, "p",             ratio<1, 1, -12>> {};
+struct nano   : units::prefix<nano,   prefix, "n",             ratio<1, 1,  -9>> {};
+struct micro  : units::prefix<micro,  prefix, {"\u00b5", "u"}, ratio<1, 1,  -6>> {};
+struct milli  : units::prefix<milli,  prefix, "m",             ratio<1, 1,  -3>> {};
+struct centi  : units::prefix<centi,  prefix, "c",             ratio<1, 1,  -2>> {};
+struct deci   : units::prefix<deci,   prefix, "d",             ratio<1, 1,  -1>> {};
+struct deca   : units::prefix<deca,   prefix, "da",            ratio<1, 1,   1>> {};
+struct hecto  : units::prefix<hecto,  prefix, "h",             ratio<1, 1,   2>> {};
+struct kilo   : units::prefix<kilo,   prefix, "k",             ratio<1, 1,   3>> {};
+struct mega   : units::prefix<mega,   prefix, "M",             ratio<1, 1,   6>> {};
+struct giga   : units::prefix<giga,   prefix, "G",             ratio<1, 1,   9>> {};
+struct tera   : units::prefix<tera,   prefix, "T",             ratio<1, 1,  12>> {};
+struct peta   : units::prefix<peta,   prefix, "P",             ratio<1, 1,  15>> {};
+struct exa    : units::prefix<exa,    prefix, "E",             ratio<1, 1,  18>> {};
+struct zetta  : units::prefix<zetta,  prefix, "Z",             ratio<1, 1,  21>> {};
+struct yotta  : units::prefix<yotta,  prefix, "Y",             ratio<1, 1,  24>> {};
 // clang-format on
 
 }  // namespace units::si
diff --git a/test/unit_test/runtime/fmt_test.cpp b/test/unit_test/runtime/fmt_test.cpp
index 3bedfde9..3f7455ac 100644
--- a/test/unit_test/runtime/fmt_test.cpp
+++ b/test/unit_test/runtime/fmt_test.cpp
@@ -722,6 +722,16 @@ TEST_CASE("format string with %Aq for unit with no ASCII quantity unit symbol sh
   CHECK(fmt::format("{:%Aq}", 123q_km_per_h) == "km/h");
 }
 
+TEST_CASE("format string with only %q for unit with ASCII quantity unit prefix symbol should print Unicode quantity unit prefix symbol only", "[text][fmt]")
+{
+  CHECK(fmt::format("{:%Q%q}", 123q_uV) == "123\u00b5V");
+}
+
+TEST_CASE("format string with %Aq for unit with ASCII quantity unit prefix symbol should print ASCII quantity unit prefix symbol only", "[text][fmt]")
+{
+  CHECK(fmt::format("{:%Q%Aq}", 123q_uV) == "123uV");
+}
+
 TEST_CASE("%q and %Q can be put anywhere in a format string", "[text][fmt]")
 {
   SECTION("no space")