diff --git a/compiler/cli/bin/kotlinc b/compiler/cli/bin/kotlinc
index c200606e921..1c4106474a3 100755
--- a/compiler/cli/bin/kotlinc
+++ b/compiler/cli/bin/kotlinc
@@ -39,7 +39,7 @@ if $cygwin; then
     KOTLIN_HOME=`cygpath --windows --short-name "$KOTLIN_HOME"`
 fi
 
-[ -n "$JAVA_OPTS" ] || JAVA_OPTS="-Xmx256M -Xms32M"
+[ -n "$JAVA_OPTS" ] || JAVA_OPTS="-Xmx256M -Xms128M"
 
 declare -a java_args
 declare -a kotlin_args
diff --git a/compiler/cli/bin/kotlinc.bat b/compiler/cli/bin/kotlinc.bat
index 7f35c848763..3d49e7b193c 100644
--- a/compiler/cli/bin/kotlinc.bat
+++ b/compiler/cli/bin/kotlinc.bat
@@ -20,7 +20,7 @@ if not "%JAVA_HOME%"=="" (
 )
 
 rem We use the value of the JAVA_OPTS environment variable if defined
-if "%JAVA_OPTS%"=="" set JAVA_OPTS=-Xmx256M -Xms32M
+if "%JAVA_OPTS%"=="" set JAVA_OPTS=-Xmx256M -Xms128M
 
 rem Iterate through arguments and split them into java and kotlin ones
 :loop