diff --git a/Tools/nib2cib/NSAppKit.j b/Tools/nib2cib/NSAppKit.j
index 2e022320f..fdb45775b 100644
--- a/Tools/nib2cib/NSAppKit.j
+++ b/Tools/nib2cib/NSAppKit.j
@@ -81,6 +81,7 @@
 @import "WebView.j"
 @import "NSSortDescriptor.j"
 @import "NSPopover.j"
+@import "NSProgressIndicator.j"
 
 
 function CP_NSMapClassName(aClassName)
diff --git a/Tools/nib2cib/NSProgressIndicator.j b/Tools/nib2cib/NSProgressIndicator.j
new file mode 100644
index 000000000..3f54fa587
--- /dev/null
+++ b/Tools/nib2cib/NSProgressIndicator.j
@@ -0,0 +1,75 @@
+/*
+ * NSProgressIndicator.j
+ * nib2cib
+ *
+ * Created by Antoine Mercadal.
+ * Copyright 2011 Antoine Mercadal.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+@import <AppKit/CPProgressIndicator.j>
+
+
+@implementation CPProgressIndicator (NSCoding)
+
+- (id)NS_initWithCoder:(CPCoder)aCoder
+{
+    self = [super NS_initWithCoder:aCoder];
+
+    if (self)
+    {
+        var NS_flags    = [aCoder decodeIntForKey:@"NSpiFlags"];
+
+        _minValue       = [aCoder decodeDoubleForKey:@"NSMinValue"] || 0;
+        _maxValue       = [aCoder decodeDoubleForKey:@"NSMaxValue"];
+
+        _style = (NS_flags & CPProgressIndicatorSpinningStyle) ? CPProgressIndicatorSpinningStyle : CPProgressIndicatorBarStyle;
+        _isIndeterminate = (NS_flags & 2) ? YES : NO;
+        _isDisplayedWhenStopped = (NS_flags & 8192) ? NO : YES;
+        _controlSize = CPRegularControlSize;
+
+        // There is a bug in Xcode. the currentValue is not stored.
+        // Let's set it to 0.0 for now.
+        _doubleValue = 0.0;
+
+        // Readjust the height of the control to the correct size.
+        var currentFrameSize = [self frameSize];
+        currentFrameSize.height = 15.0;
+        [self setFrameSize:currentFrameSize];
+
+        // update graphics
+        [self updateBackgroundColor];
+        [self drawBar];
+    }
+
+    return self;
+}
+
+@end
+
+@implementation NSProgressIndicator : CPProgressIndicator
+
+- (id)initWithCoder:(CPCoder)aCoder
+{
+    return [self NS_initWithCoder:aCoder];
+}
+
+- (Class)classForKeyedArchiver
+{
+    return [CPProgressIndicator class];
+}
+
+@end