diff --git a/se/sics/mspsim/core/ADC12Plus.java b/se/sics/mspsim/core/ADC12Plus.java
index c2e6695..4b43a5c 100644
--- a/se/sics/mspsim/core/ADC12Plus.java
+++ b/se/sics/mspsim/core/ADC12Plus.java
@@ -78,6 +78,8 @@ package se.sics.mspsim.core;
 
 import java.util.Arrays;
 
+import se.sics.mspsim.core.EmulationLogger.WarningType;
+
 
 /**
  * ADC12 Plus IO peripheral
diff --git a/se/sics/mspsim/core/AES128.java b/se/sics/mspsim/core/AES128.java
index e11918a..f64b50b 100644
--- a/se/sics/mspsim/core/AES128.java
+++ b/se/sics/mspsim/core/AES128.java
@@ -37,6 +37,8 @@ import java.nio.ByteBuffer;
 import javax.crypto.Cipher;
 import javax.crypto.spec.SecretKeySpec;
 
+import se.sics.mspsim.core.EmulationLogger.WarningType;
+
 
 /**
  * AES128 msp430 peripheral emulation
diff --git a/se/sics/mspsim/core/RTC.java b/se/sics/mspsim/core/RTC.java
index 1eb208a..28234d0 100644
--- a/se/sics/mspsim/core/RTC.java
+++ b/se/sics/mspsim/core/RTC.java
@@ -35,6 +35,8 @@ package se.sics.mspsim.core;
 import java.util.Calendar;
 import java.util.GregorianCalendar;
 
+import se.sics.mspsim.core.EmulationLogger.WarningType;
+
 
 /**
  * RTC module for the MSP430