diff --git a/compiler/psi/src/org/jetbrains/kotlin/psi/KtBlockCodeFragmentType.java b/compiler/psi/src/org/jetbrains/kotlin/psi/KtBlockCodeFragmentType.java
index fe57dbba5c3..f2519d59c94 100644
--- a/compiler/psi/src/org/jetbrains/kotlin/psi/KtBlockCodeFragmentType.java
+++ b/compiler/psi/src/org/jetbrains/kotlin/psi/KtBlockCodeFragmentType.java
@@ -22,6 +22,7 @@ import com.intellij.lang.PsiBuilder;
 import com.intellij.lang.PsiBuilderFactory;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiElement;
+import kotlin.text.StringsKt;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.parsing.KotlinParser;
 import org.jetbrains.kotlin.psi.stubs.elements.KtFileElementType;
@@ -41,6 +42,10 @@ public class KtBlockCodeFragmentType extends KtFileElementType {
 
     @Override
     protected ASTNode doParseContents(@NotNull ASTNode chameleon, @NotNull PsiElement psi) {
+        if (StringsKt.isBlank(chameleon.getText())) {
+            return null;
+        }
+
         Project project = psi.getProject();
         Language languageForParser = getLanguageForParser(psi);
         PsiBuilder builder = PsiBuilderFactory.getInstance().createBuilder(project, chameleon, null, languageForParser, chameleon.getChars());
diff --git a/compiler/psi/src/org/jetbrains/kotlin/psi/KtExpressionCodeFragmentType.java b/compiler/psi/src/org/jetbrains/kotlin/psi/KtExpressionCodeFragmentType.java
index b562e239110..9dc16aba44e 100644
--- a/compiler/psi/src/org/jetbrains/kotlin/psi/KtExpressionCodeFragmentType.java
+++ b/compiler/psi/src/org/jetbrains/kotlin/psi/KtExpressionCodeFragmentType.java
@@ -22,6 +22,7 @@ import com.intellij.lang.PsiBuilder;
 import com.intellij.lang.PsiBuilderFactory;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiElement;
+import kotlin.text.StringsKt;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.parsing.KotlinParser;
 import org.jetbrains.kotlin.psi.stubs.elements.KtFileElementType;
@@ -41,6 +42,10 @@ public class KtExpressionCodeFragmentType extends KtFileElementType {
 
     @Override
     protected ASTNode doParseContents(@NotNull ASTNode chameleon, @NotNull PsiElement psi) {
+         if (StringsKt.isBlank(chameleon.getText())) {
+            return null;
+        }
+
         Project project = psi.getProject();
         Language languageForParser = getLanguageForParser(psi);
         PsiBuilder builder = PsiBuilderFactory.getInstance().createBuilder(project, chameleon, null, languageForParser, chameleon.getChars());