diff --git a/README.md b/README.md
index 566d75e11820..8ce16581b169 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,9 @@ Using IntelliJ IDEA **File | Open**, select the `<IDEA_HOME>` directory.
   [refresh the Gradle projects](https://www.jetbrains.com/help/idea/jetgradle-tool-window.html). 
 
 ### IntelliJ Build Configuration
-JDK version 1.8 (u162 or newer) is required for building and developing for IntelliJ IDEA Community Edition.
+JDK version 1.8 (u162 or newer) is required for building and developing for IntelliJ IDEA Community Edition. Note that IntelliJ IDEA depends
+on JavaFX classes so the JDK distribution must include jfxrt.jar. You may use for example Oracle JDK or Amazon Corretto (the latter can be 
+downloaded directly from Project Structure dialog since IntelliJ IDEA 2020.1).  
 1. Using IntelliJ IDEA, [configure](https://www.jetbrains.com/help/idea/sdk.html) a JDK named "**1.8**", pointing to `<JDK_18_HOME>`.
    * If not already present, add `<JDK_18_HOME>/lib/tools.jar` [to the Classpath](https://www.jetbrains.com/help/idea/sdk.html#manage_sdks) tab
      for the **1.8** JDK.