diff --git a/src/scripts/h5p-dictation-sentence.js b/src/scripts/h5p-dictation-sentence.js
index 878133c..4b6da7c 100644
--- a/src/scripts/h5p-dictation-sentence.js
+++ b/src/scripts/h5p-dictation-sentence.js
@@ -317,8 +317,9 @@ class Sentence {
    * @returns {string} Description text.
    */
   getXAPIDescription() {
-    return this.params.sentence.description || '' ?
-      `<p>${this.params.sentence.description}</p>` :
+    return this.params.sentence.description?.length ?
+      `<p>${this.params.sentence.description
+        .replaceAll(/_{10,}/gi, H5P.Dictation.FILL_IN_PLACEHOLDER_REPLACEMENT)}</p>` :
       '';
   }
 
diff --git a/src/scripts/h5p-dictation.js b/src/scripts/h5p-dictation.js
index 6c922ed..49a3c0f 100644
--- a/src/scripts/h5p-dictation.js
+++ b/src/scripts/h5p-dictation.js
@@ -644,7 +644,7 @@ class Dictation extends H5P.Question {
     // Fallback for h5p-php-reporting, expects en-US
     definition.name['en-US'] = definition.name[this.languageTag];
     definition.description = {};
-    definition.description[this.languageTag] = `${this.getDescription()}${placeholders}`;
+    definition.description[this.languageTag] = `${this.getXAPIDescription()}${placeholders}`;
     // Fallback for h5p-php-reporting, expects en-US
     definition.description['en-US'] = definition.description[this.languageTag];
     definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
@@ -758,6 +758,14 @@ class Dictation extends H5P.Question {
     return this.params.taskDescription || Dictation.DEFAULT_DESCRIPTION;
   }
 
+  /**
+   * Get description for xAPI statement.
+   * @returns {string} Description for xAPI statement.
+   */
+  getXAPIDescription() {
+    return this.getDescription().replaceAll(/_{10,}/gi, Dictation.FILL_IN_PLACEHOLDER_REPLACEMENT);
+  }
+
   /**
    * Checks if any sentence's audio playback has started.
    * @returns {boolean} True if audio playback has started, false otherwise.
@@ -790,4 +798,7 @@ Dictation.XAPI_REPORTING_VERSION = '1.0.0';
  */
 Dictation.FILL_IN_PLACEHOLDER = '__________';
 
+/** @constant {string} FILL_IN_PLACEHOLDER_REPLACEMENT Replacement for FILL_IN_PLACEHOLDER in genuine text. */
+Dictation.FILL_IN_PLACEHOLDER_REPLACEMENT = '_________';
+
 export default Dictation;