diff --git a/src/main/kotlin/mdnet/base/server/ImageServer.kt b/src/main/kotlin/mdnet/base/server/ImageServer.kt
index 77333ad..b7ab581 100644
--- a/src/main/kotlin/mdnet/base/server/ImageServer.kt
+++ b/src/main/kotlin/mdnet/base/server/ImageServer.kt
@@ -234,7 +234,7 @@ class ImageServer(
         val lastModified = mdResponse.header("Last-Modified")
 
         if (!contentType.isImageMimetype()) {
-            LOGGER.trace { "Upstream query for $sanitizedUri returned bad mimetype $contentType" }
+            LOGGER.warn { "Upstream query for $sanitizedUri returned bad mimetype $contentType" }
             mdResponse.close()
             return Response(Status.INTERNAL_SERVER_ERROR)
         }
diff --git a/src/main/resources/logback.xml b/src/main/resources/logback.xml
index 126b3d3..df0d417 100644
--- a/src/main/resources/logback.xml
+++ b/src/main/resources/logback.xml
@@ -1,7 +1,7 @@
 <configuration>
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
-            <level>${file-level:-TRACE}</level>
+            <level>${file-level:-WARN}</level>
         </filter>
 
         <file>log/latest.log</file>