diff --git a/server/src/com/mirth/connect/server/migration/Migrate4_5_2.java b/server/src/com/mirth/connect/server/migration/Migrate4_5_2.java
index fefeaeea31..a3a95aebfe 100644
--- a/server/src/com/mirth/connect/server/migration/Migrate4_5_2.java
+++ b/server/src/com/mirth/connect/server/migration/Migrate4_5_2.java
@@ -2,6 +2,7 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.net.URI;
 import java.util.Map;
 
 import org.apache.commons.configuration2.PropertiesConfiguration;
@@ -23,33 +24,29 @@ public void migrate() throws MigrationException {
 		migrateLog4jProperties();
 	}
 	
-    private void migrateLog4jProperties() {
-        try {
-        	// Update log4j2.properties
-            FileBasedConfigurationBuilder<PropertiesConfiguration> builder = PropertiesConfigurationUtil.createBuilder(new File(ClassPathResource.getResourceURI("log4j2.properties")));
-            PropertiesConfiguration log4jproperties = builder.getConfiguration();
-
-            String consoleCharset = (String) log4jproperties.getProperty("appender.console.layout.charset");
-            if (StringUtils.isBlank(consoleCharset)) {
-                log4jproperties.setProperty("appender.console.layout.charset", "UTF-8");
-            }
-
-            builder.save();
-            
-            // Update log4j2-cli.properties
-            builder = PropertiesConfigurationUtil.createBuilder(new File(ClassPathResource.getResourceURI("log4j2-cli.properties")));
-            log4jproperties = builder.getConfiguration();
-
-            consoleCharset = (String) log4jproperties.getProperty("appender.console.layout.charset");
-            if (StringUtils.isBlank(consoleCharset)) {
-                log4jproperties.setProperty("appender.console.layout.charset", "UTF-8");
-            }
+	private void migrateLog4jProperties() {
+		updateAppender("log4j2.properties");
+		updateAppender("log4j2-cli.properties");
+	}
 
-            builder.save();
-        } catch (ConfigurationException | IOException e) {
-            logger.error("Failed to migrate log4j properties.", e);
-        }
-    }
+	private void updateAppender(String fileName) {
+		try {
+			URI uri = ClassPathResource.getResourceURI(fileName);
+			if (uri == null) {
+				logger.info("Migration could not find {}.", fileName);
+				return;
+			}
+			FileBasedConfigurationBuilder<PropertiesConfiguration> builder = PropertiesConfigurationUtil.createBuilder(new File(uri));
+			PropertiesConfiguration properties = builder.getConfiguration();
+			String consoleCharset = (String) properties.getProperty("appender.console.layout.charset");
+			if (StringUtils.isBlank(consoleCharset)) {
+				properties.setProperty("appender.console.layout.charset", "UTF-8");
+				builder.save();
+			}
+	 	} catch (ConfigurationException | IOException e) {
+			logger.error(String.format("Failed to migrate %s.", fileName), e);
+		}
+	}
 
 	@Override
 	public Map<String, Object> getConfigurationPropertiesToAdd() {