diff --git a/tzdata-2011d-morocco.patch b/tzdata-2011d-morocco.patch
new file mode 100644
index 0000000..a619608
--- /dev/null
+++ b/tzdata-2011d-morocco.patch
@@ -0,0 +1,15 @@
+diff -up tzdata2011d/africa\~ tzdata2011d/africa
+--- tzdata2011d/africa~	2010-12-16 18:24:19.000000000 +0100
++++ tzdata2011d/africa	2011-03-30 17:02:26.000000000 +0200
+@@ -735,6 +735,9 @@ Rule	Morocco	2009	only	-	Jun	 1	 0:00	1:
+ Rule	Morocco	2009	only	-	Aug	 21	 0:00	0	-
+ Rule	Morocco	2010	only	-	May	 2	 0:00	1:00	S
+ Rule	Morocco	2010	only	-	Aug	 8	 0:00	0	-
++Rule	Morocco 2011	only	-	Apr	 3	 0:00	1:00	S
++Rule	Morocco 2011	only	-	Aug	 1	 0:00	0	-
++
+ # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+ Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
+ 			 0:00	Morocco	WE%sT	1984 Mar 16
+
+Diff finished.  Wed Mar 30 17:02:32 2011
diff --git a/tzdata.spec b/tzdata.spec
index b0a8e7b..f2ce2f0 100644
--- a/tzdata.spec
+++ b/tzdata.spec
@@ -3,7 +3,7 @@ Name: tzdata
 Version: 2011d
 %define tzdata_version 2011d
 %define tzcode_version 2011d
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: Public Domain
 Group: System Environment/Base
 URL: ftp://elsie.nci.nih.gov/pub/
@@ -19,6 +19,7 @@ Source2: ftp://elsie.nci.nih.gov/pub/tzcode%{tzcode_version}.tar.gz
 # __decl_patches
 Patch1: tzdata-2011d-chile.patch
 Patch2: tzdata-2011d-kemerovo.patch
+Patch3: tzdata-2011d-morocco.patch
 # __end
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -54,6 +55,7 @@ sed -e 's|@objpfx@|'`pwd`'/obj/|' \
 # __apply_patches
 %patch1 -p0
 %patch2 -p0
+%patch3 -p0
 # __end
 
 mkdir javazic
@@ -115,6 +117,9 @@ rm -rf %{buildroot}
 %{_datadir}/javazi
 
 %changelog
+* Wed Mar 30 2011 Petr Machata <pmachata@redhat.com> - 2011d-3
+- Morocco introduced DST for 2011 from April 2 to July 31. (tzdata-2011d-morocco.patch)
+
 * Tue Mar 29 2011 Petr Machata <pmachata@redhat.com> - 2011d-2
 - Delay end of DST in Chile in 2011 until May 7. (tzdata-2011d-chile.patch)