diff --git a/aztec/src/main/kotlin/org/wordpress/aztec/spans/AztecHeadingSpan.kt b/aztec/src/main/kotlin/org/wordpress/aztec/spans/AztecHeadingSpan.kt
index a0748a6e2..a19ad2a26 100644
--- a/aztec/src/main/kotlin/org/wordpress/aztec/spans/AztecHeadingSpan.kt
+++ b/aztec/src/main/kotlin/org/wordpress/aztec/spans/AztecHeadingSpan.kt
@@ -136,6 +136,8 @@ open class AztecHeadingSpan(
             previousFontMetrics!!.descent = fm.descent
         }
 
+        previousFontMetrics = null
+
         var addedTopPadding = false
         var addedBottomPadding = false