diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs
index 838dab90a6de0..9a601c757cd39 100644
--- a/library/core/src/fmt/mod.rs
+++ b/library/core/src/fmt/mod.rs
@@ -518,7 +518,7 @@ impl FormattingOptions {
     pub const fn get_precision(&self) -> Option<u16> {
         if self.flags & flags::PRECISION_FLAG != 0 { Some(self.precision) } else { None }
     }
-    /// Returns the current precision.
+    /// Returns the current `x?` or `X?` flag.
     #[unstable(feature = "formatting_options", issue = "118117")]
     pub const fn get_debug_as_hex(&self) -> Option<DebugAsHex> {
         if self.flags & flags::DEBUG_LOWER_HEX_FLAG != 0 {