diff --git a/build.xml b/build.xml
index fac2b7730b8..073242d951d 100644
--- a/build.xml
+++ b/build.xml
@@ -600,6 +600,9 @@
 
                     <attribute name="Class-Path" value="${compiler.manifest.class.path}"/>
                     <attribute name="Main-Class" value="org.jetbrains.kotlin.cli.jvm.K2JVMCompiler"/>
+
+                    <!-- This is needed if the compiler is run on Java 9 via "java -jar kotlin-compiler.jar" -->
+                    <attribute name="Add-Opens" value="java.base/java.lang java.base/java.util java.base/java.util.concurrent.atomic java.base/jdk.internal.misc"/>
                 </manifest>
             </jar>
         </sequential>
diff --git a/compiler/cli/bin/kotlinc b/compiler/cli/bin/kotlinc
index 9eacfbb6a5c..ee34b6cf93e 100755
--- a/compiler/cli/bin/kotlinc
+++ b/compiler/cli/bin/kotlinc
@@ -67,6 +67,15 @@ then
 else
     [ -n "$KOTLIN_COMPILER" ] || KOTLIN_COMPILER=org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
     java_args=("${java_args[@]}" "-noverify")
+
+    if [[ -n $(command -v head) && -n $(command -v tail) && $($JAVACMD -version 2>&1 | head -2 | tail -1) =~ build\ 9 ]]; then
+        java_args=("${java_args[@]}" \
+            "--add-opens" "java.base/java.lang=ALL-UNNAMED" \
+            "--add-opens" "java.base/java.util=ALL-UNNAMED" \
+            "--add-opens" "java.base/java.util.concurrent.atomic=ALL-UNNAMED" \
+            "--add-opens" "java.base/jdk.internal.misc=ALL-UNNAMED")
+    fi
+
     kotlin_app=("${KOTLIN_HOME}/lib/kotlin-preloader.jar" "org.jetbrains.kotlin.preloading.Preloader" "-cp" "${KOTLIN_HOME}/lib/kotlin-compiler.jar" $KOTLIN_COMPILER)
 fi