diff --git a/src/gles_render/setup.rs b/src/gles_render/setup.rs
index 25e7cd4..5d08cb6 100644
--- a/src/gles_render/setup.rs
+++ b/src/gles_render/setup.rs
@@ -772,11 +772,11 @@ impl GlesCanvas
 		self.font_for_char( ch ).metrics( ch, size * self.dpi_scale )
 	}
 
-	/// Horizontal line metrics of the default font at `size` px (`None` if the
-	/// font lacks them). Not pre-scaled by `dpi_scale`.
+	/// Horizontal line metrics of the default font at `size` logical px (`None`
+	/// if the font lacks them), pre-scaled by `dpi_scale`.
 	pub fn font_line_metrics( &self, size: f32 ) -> Option<LineMetrics>
 	{
-		self.font.horizontal_line_metrics( size )
+		self.font.horizontal_line_metrics( size * self.dpi_scale )
 	}
 
 	/// Resize the FBO and viewport. The previous color attachment is freed and
diff --git a/src/render/mod.rs b/src/render/mod.rs
index 41ab104..226bdfe 100644
--- a/src/render/mod.rs
+++ b/src/render/mod.rs
@@ -529,10 +529,11 @@ impl Canvas
 		self.font().metrics( ch, size * self.dpi_scale() )
 	}
 
-	/// Convenience wrapper around `font().horizontal_line_metrics(...)`.
+	/// Convenience wrapper around `font().horizontal_line_metrics(...)`,
+	/// pre-scaled by `dpi_scale` like [`Self::font_metrics`].
 	pub fn font_line_metrics( &self, size: f32 ) -> Option<LineMetrics>
 	{
-		self.font().horizontal_line_metrics( size )
+		self.font().horizontal_line_metrics( size * self.dpi_scale() )
 	}
 
 	pub fn resize( &mut self, width: u32, height: u32 )