diff --git a/citest/test.bat b/citest/test.bat
index 609959707..7d35a6ca6 100644
--- a/citest/test.bat
+++ b/citest/test.bat
@@ -7,6 +7,8 @@ unzip ..\target\universal\sbt.zip -d freshly-baked
 
 SETLOCAL
 
+"freshly-baked\sbt\bin\sbt" about
+
 SET JAVA_HOME=C:\jdk9
 SET PATH=C:\jdk9\bin;%PATH%
 SET SBT_OPTS=-Xmx4g -Dfile.encoding=UTF8
diff --git a/src/universal/bin/sbt.bat b/src/universal/bin/sbt.bat
index 4384c7286..4e966daac 100644
--- a/src/universal/bin/sbt.bat
+++ b/src/universal/bin/sbt.bat
@@ -129,7 +129,7 @@ exit /B 1
 
 :copyrt
 if /I "%JAVA_VERSION%" GEQ "9" (
-  set rtexport=%SBT_HOME%java9-rt-export.jar
+  set rtexport=!SBT_HOME!java9-rt-export.jar
 
   "%_JAVACMD%" %_JAVA_OPTS% %SBT_OPTS% -jar "!rtexport!" --rt-ext-dir > "%TEMP%.\rtext.txt"
   set /p java9_ext= < "%TEMP%.\rtext.txt"