diff --git a/bin/win/idea.bat b/bin/win/idea.bat
index b849c97c2729..e0cfc2bdb4a8 100644
--- a/bin/win/idea.bat
+++ b/bin/win/idea.bat
@@ -23,7 +23,7 @@ IF NOT EXIST "%JAVA_EXE%" goto error
 
 IF "%IDEA_MAIN_CLASS_NAME%" == "" SET IDEA_MAIN_CLASS_NAME=com.intellij.idea.Main
 
-IF NOT "%IDEA_PROPERTIES%" == "" set IDEA_PROPERTIES_PROPERTY=-Didea.properties.file=%IDEA_PROPERTIES%
+IF NOT "%IDEA_PROPERTIES%" == "" set IDEA_PROPERTIES_PROPERTY="-Didea.properties.file=%IDEA_PROPERTIES%"
 
 :: ---------------------------------------------------------------------
 :: You may specify your own JVM arguments in idea.exe.vmoptions file. Put one option per line there.