diff --git a/packages/core/src/helpers/isMarkActive.ts b/packages/core/src/helpers/isMarkActive.ts
index f276670f..b41f1c2f 100644
--- a/packages/core/src/helpers/isMarkActive.ts
+++ b/packages/core/src/helpers/isMarkActive.ts
@@ -36,7 +36,7 @@ export default function isMarkActive(
   let markRanges: MarkRange[] = []
 
   state.doc.nodesBetween(from, to, (node, pos) => {
-    if (node.isInline) {
+    if (node.isText) {
       const relativeFrom = Math.max(from, pos)
       const relativeTo = Math.min(to, pos + node.nodeSize)
       const range = relativeTo - relativeFrom
@@ -51,6 +51,10 @@ export default function isMarkActive(
     }
   })
 
+  if (selectionRange === 0) {
+    return false
+  }
+
   const range = markRanges
     .filter(markRange => {
       if (!type) {