diff --git a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/GenerateTestsDialogWindow.kt b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/GenerateTestsDialogWindow.kt
index 8076c2208a..e0cc22c797 100644
--- a/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/GenerateTestsDialogWindow.kt
+++ b/utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/ui/GenerateTestsDialogWindow.kt
@@ -520,7 +520,7 @@ class GenerateTestsDialogWindow(val model: GenerateTestsModel) : DialogWrapper(m
                 text = run {
                     val sdkVersion = findSdkVersionOrNull(this@GenerateTestsDialogWindow.model.srcModule)?.feature
                     if (sdkVersion != null) {
-                        "SDK version $sdkVersion is not supported, use ${JavaSdkVersion.JDK_1_8}, ${JavaSdkVersion.JDK_11} or ${JavaSdkVersion.JDK_17}"
+                        "SDK version $sdkVersion is not supported, use ${JavaSdkVersion.JDK_1_8.toReadableString()}, ${JavaSdkVersion.JDK_11.toReadableString()} or ${JavaSdkVersion.JDK_17.toReadableString()} instead."
                     } else {
                         "SDK is not defined"
                     }
@@ -533,6 +533,8 @@ class GenerateTestsDialogWindow(val model: GenerateTestsModel) : DialogWrapper(m
             })
         }
 
+        fun JavaSdkVersion.toReadableString() : String = toString().replace("JDK_", "").replace('_', '.')
+
         override fun getBackground(): Color? =
             EditorColorsManager.getInstance().globalScheme.getColor(HintUtil.ERROR_COLOR_KEY) ?: super.getBackground()
 
diff --git a/utbot-intellij/src/test/kotlin/org/utbot/tests/UnitTestBotActionTest.kt b/utbot-intellij/src/test/kotlin/org/utbot/tests/UnitTestBotActionTest.kt
index 3d5f7acb87..e06b403bc8 100644
--- a/utbot-intellij/src/test/kotlin/org/utbot/tests/UnitTestBotActionTest.kt
+++ b/utbot-intellij/src/test/kotlin/org/utbot/tests/UnitTestBotActionTest.kt
@@ -68,7 +68,7 @@ class UnitTestBotActionTest : BaseTest() {
             textEditor().typeAdditionFunction(newClassName)
             openUTBotDialogFromProjectViewForClass(newClassName)
             assertThat(unitTestBotDialog.generateTestsButton.isEnabled().not())
-            assertThat(unitTestBotDialog.sdkNotificationLabel.hasText("SDK version 19 is not supported, use JDK_1_8, JDK_11 or JDK_17"))
+            assertThat(unitTestBotDialog.sdkNotificationLabel.hasText("SDK version 19 is not supported, use 1.8, 11 or 17 instead."))
             assertThat(unitTestBotDialog.setupSdkLink.isShowing)
             unitTestBotDialog.closeButton.click()
         }