diff --git a/bootstrap.bat b/bootstrap.bat
index 5e70c8e63..218554c2b 100755
--- a/bootstrap.bat
+++ b/bootstrap.bat
@@ -62,7 +62,7 @@ if not exist build\classes\nul mkdir build\classes
 echo.
 echo ... Compiling Ant Classes
 
-"%JAVAC%" %BOOTJAVAC_OPTS% -d %CLASSDIR% %TOOLS%\bzip2\*.java %TOOLS%\tar\*.java %TOOLS%\zip\*.java %TOOLS%\ant\*.java %TOOLS%\ant\types\*.java %TOOLS%\ant\taskdefs\*.java %TOOLS%\ant\util\regexp\RegexpMatcher.java %TOOLS%\ant\util\regexp\RegexpMatcherFactory.java %TOOLS%\ant\taskdefs\condition\*.java %TOOLS%\ant\taskdefs\compilers\*.java %TOOLS%\ant\types\resources\*.java
+"%JAVAC%" %BOOTJAVAC_OPTS% -d %CLASSDIR% %TOOLS%\bzip2\*.java %TOOLS%\tar\*.java %TOOLS%\zip\*.java %TOOLS%\ant\*.java %TOOLS%\ant\types\*.java %TOOLS%\ant\taskdefs\*.java %TOOLS%\ant\util\regexp\RegexpMatcher.java %TOOLS%\ant\util\regexp\RegexpMatcherFactory.java %TOOLS%\ant\taskdefs\condition\*.java %TOOLS%\ant\taskdefs\compilers\*.java %TOOLS%\ant\types\resources\*.java %TOOLS%\ant\property\*.java
 
 if ERRORLEVEL 1 goto mainend
 
diff --git a/bootstrap.sh b/bootstrap.sh
index 7b1185ca3..22e550ddc 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -130,6 +130,7 @@ echo ... Compiling Ant Classes
 "${JAVAC}" $BOOTJAVAC_OPTS -d ${CLASSDIR} ${TOOLS}/bzip2/*.java ${TOOLS}/tar/*.java ${TOOLS}/zip/*.java \
     ${TOOLS}/ant/util/regexp/RegexpMatcher.java \
     ${TOOLS}/ant/util/regexp/RegexpMatcherFactory.java \
+    ${TOOLS}/ant/property/*.java \
     ${TOOLS}/ant/types/*.java \
     ${TOOLS}/ant/types/resources/*.java \
     ${TOOLS}/ant/*.java ${TOOLS}/ant/taskdefs/*.java \