diff --git a/core/src/text.rs b/core/src/text.rs
index fc8aa20ee2..7afdb75bc3 100644
--- a/core/src/text.rs
+++ b/core/src/text.rs
@@ -74,7 +74,9 @@ impl LineHeight {
     /// Returns the [`LineHeight`] in absolute logical pixels.
     pub fn to_absolute(self, text_size: Pixels) -> Pixels {
         match self {
-            Self::Relative(factor) => Pixels(factor * text_size.0),
+            Self::Relative(factor) => {
+                Pixels((factor * text_size.0).max(f32::MIN_POSITIVE))
+            }
             Self::Absolute(pixels) => pixels,
         }
     }