diff --git a/platform/platform-api/src/com/intellij/util/net/NetUtils.java b/platform/platform-api/src/com/intellij/util/net/NetUtils.java
index e8e9405c42b8..db2819c8199f 100644
--- a/platform/platform-api/src/com/intellij/util/net/NetUtils.java
+++ b/platform/platform-api/src/com/intellij/util/net/NetUtils.java
@@ -205,6 +205,14 @@ public class NetUtils {
         }
       }
     }
+    if (gzipStream != null) {
+      // Amount of read bytes may have changed when 'inputStream.read(buffer)' returns -1
+      // E.g. reading GZIP trailer doesn't produce inflated stream data.
+      bytesRead = gzipStream.getCompressedBytesRead();
+      if (indicator != null && expectedContentLength > 0) {
+        indicator.setFraction((double)bytesRead / expectedContentLength);
+      }
+    }
 
     if (indicator != null) {
       indicator.checkCanceled();