diff --git a/plugins/coverage-common/src/com/intellij/execution/configurations/coverage/CoverageEnabledConfiguration.java b/plugins/coverage-common/src/com/intellij/execution/configurations/coverage/CoverageEnabledConfiguration.java
index 6a155782b9b0..d9f291cb8807 100644
--- a/plugins/coverage-common/src/com/intellij/execution/configurations/coverage/CoverageEnabledConfiguration.java
+++ b/plugins/coverage-common/src/com/intellij/execution/configurations/coverage/CoverageEnabledConfiguration.java
@@ -237,7 +237,7 @@ public abstract class CoverageEnabledConfiguration implements JDOMExternalizable
 
     @NonNls final String coverageRootPath = PathManager.getSystemPath() + File.separator + "coverage";
     final String path = coverageRootPath + File.separator + FileUtil.sanitizeFileName(myProject.getName()) + coverageFileNameSeparator()
-                        + FileUtil.sanitizeFileName(myConfiguration.getName()) + ".coverage";
+                        + FileUtil.sanitizeFileName(myConfiguration.getName()) + "." + myCoverageRunner.getDataFileExtension();
 
     new File(coverageRootPath).mkdirs();
     return path;