diff --git a/bin/nix/idea.sh b/bin/nix/idea.sh
index e222bf80efc8..ad6f9be9e4bb 100755
--- a/bin/nix/idea.sh
+++ b/bin/nix/idea.sh
@@ -128,6 +128,7 @@ CLASSPATH=$CLASSPATH:../lib/jdom.jar
 CLASSPATH=$CLASSPATH:../lib/log4j.jar
 CLASSPATH=$CLASSPATH:../lib/extensions.jar
 CLASSPATH=$CLASSPATH:../lib/trove4j.jar
+CLASSPATH=$CLASSPATH:../lib/jna.jar
 CLASSPATH=$CLASSPATH:$JDK/lib/tools.jar
 CLASSPATH=$CLASSPATH:$IDEA_CLASSPATH
 export CLASSPATH
diff --git a/bin/win/idea.bat b/bin/win/idea.bat
index 47b21078be59..a691e8871590 100644
--- a/bin/win/idea.bat
+++ b/bin/win/idea.bat
@@ -43,6 +43,7 @@ SET CLASS_PATH=%CLASS_PATH%;%IDEA_HOME%\lib\jdom.jar
 SET CLASS_PATH=%CLASS_PATH%;%IDEA_HOME%\lib\log4j.jar
 SET CLASS_PATH=%CLASS_PATH%;%IDEA_HOME%\lib\extensions.jar
 SET CLASS_PATH=%CLASS_PATH%;%IDEA_HOME%\lib\trove4j.jar
+SET CLASS_PATH=%CLASS_PATH%;%IDEA_HOME%\lib\jna.jar
 SET CLASS_PATH=%CLASS_PATH%;%IDEA_JDK%\lib\tools.jar
 
 :: ---------------------------------------------------------------------