diff --git a/resources/dayon.sh b/resources/dayon.sh
index 3edce22e..58ecde98 100755
--- a/resources/dayon.sh
+++ b/resources/dayon.sh
@@ -20,7 +20,6 @@ elif [ ! -f /etc/alternatives/java ]; then
 else
   JAVA=$(ls -l /etc/alternatives/java | awk -F'> ' '{print $2}')
 fi
-JAVA_OPTS="-Xmx512M"
 case "$@" in
   *log=console*)
     LOG=
@@ -29,5 +28,13 @@ case "$@" in
     LOG="-Ddayon.log=file"
     ;;
 esac
+case "$@" in
+  *assistant*)
+    JAVA_OPTS="-Xmx512m"
+    ;;
+  *)
+    JAVA_OPTS="-Xmx1g"
+    ;;
+esac
 JAR="${DAYON_HOME}/dayon.jar"
 ${JAVA} ${JAVA_OPTS} ${LOG} -jar "${JAR}" "$@"
diff --git a/resources/snap/dayon.launcher b/resources/snap/dayon.launcher
index e091a32c..e93d806e 100755
--- a/resources/snap/dayon.launcher
+++ b/resources/snap/dayon.launcher
@@ -7,4 +7,12 @@ case "$@" in
     LOG="-Ddayon.log=file"
     ;;
 esac
-java ${LOG} -Xmx1g -jar "$@"
+case "$@" in
+  *assistant*)
+    JAVA_OPTS="-Xmx512m"
+    ;;
+  *)
+    JAVA_OPTS="-Xmx1g"
+    ;;
+esac
+java ${JAVA_OPTS} ${LOG} -jar "$@"