diff --git a/src/widget/button/mod.rs b/src/widget/button/mod.rs
index 10c820d..8ff627f 100644
--- a/src/widget/button/mod.rs
+++ b/src/widget/button/mod.rs
@@ -415,8 +415,9 @@ impl<Msg: Clone> Button<Msg>
 		let fs     = self.label_font_size( canvas );
 		let text_y = rect.y + (rect.height + fs) / 2.0 - 2.0;
 		// `rect` is what the layout granted, which is not always the
-		// preferred width: a row that cannot fit its children shrinks them.
-		let label  = super::elide( canvas, label, fs, rect.width - canvas.geom_px( theme::PAD_H ) * 2.0 );
+		// preferred width: a pinned width or a shrunk row may leave less
+		// than the padding, so only the inset is kept off the label.
+		let label  = super::elide( canvas, label, fs, rect.width - canvas.geom_px( theme::LABEL_INSET ) * 2.0 );
 		let text_c = self.paint_frame( canvas, rect, focused );
 		let text_w = canvas.measure_text( &label, fs );
 		canvas.draw_text(
diff --git a/src/widget/button/theme.rs b/src/widget/button/theme.rs
index e941697..a0a87b5 100644
--- a/src/widget/button/theme.rs
+++ b/src/widget/button/theme.rs
@@ -46,3 +46,6 @@ pub const HEIGHT:     f32 = 48.0;
 pub const RADIUS:     f32 = 100.0;
 pub const FONT_SIZE:  f32 = 16.0;
 pub const PAD_H:      f32 = 24.0;
+/// Smallest gap kept between the label and the frame when the button
+/// is narrower than its preferred width (a pinned width, a shrunk row).
+pub const LABEL_INSET: f32 = 4.0;