diff --git a/ChangeLog b/ChangeLog
index c1e8800e3..52bfa810f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2007-04-11  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/SOGo/NSString+Utilities.m ([NSString -boolValue]): new
+	method that SOGo will need with non-gnustep Foundation
+	implementation.
+
 	* SoObjects/SOGo/SOGoUser.m ([SOGoUser -timeZone]): method moved
 	from SOGoObject.m.
 
diff --git a/SoObjects/SOGo/NSString+Utilities.h b/SoObjects/SOGo/NSString+Utilities.h
index 285c3296b..04d4872e8 100644
--- a/SoObjects/SOGo/NSString+Utilities.h
+++ b/SoObjects/SOGo/NSString+Utilities.h
@@ -38,6 +38,10 @@
 
 - (NSString *) davMethodToObjC;
 
+#ifndef GNUSTEP
+- (BOOL) boolValue;
+#endif
+
 @end
 
 #endif /* NSSTRING_URL_H */
diff --git a/SoObjects/SOGo/NSString+Utilities.m b/SoObjects/SOGo/NSString+Utilities.m
index 77c4e4584..f96f60fb5 100644
--- a/SoObjects/SOGo/NSString+Utilities.m
+++ b/SoObjects/SOGo/NSString+Utilities.m
@@ -100,4 +100,12 @@
   return newName;
 }
 
+#ifndef GNUSTEP
+- (BOOL) boolValue
+{
+  return !([self isEqualToString: @"0"]
+	   || [self isEqualToString: @"NO"]);
+}
+#endif
+
 @end