diff --git a/NEWS b/NEWS
index 44b1887c1..86c6d8642 100644
--- a/NEWS
+++ b/NEWS
@@ -48,6 +48,7 @@ where XXXXXX is the bug number as listed below.
 329612  Incorrect handling of AT_BASE for image execution 
 330459  --track-fds=yes doesn't track eventfds
 330469  Add clock_adjtime syscall support
+330941  Typo in PRE(poll) syscall wrapper
 
 Release 3.9.0 (31 October 2013)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/coregrind/m_syswrap/syswrap-generic.c b/coregrind/m_syswrap/syswrap-generic.c
index d852f2d6c..6587a0eaf 100644
--- a/coregrind/m_syswrap/syswrap-generic.c
+++ b/coregrind/m_syswrap/syswrap-generic.c
@@ -3785,7 +3785,7 @@ PRE(sys_poll)
                     (Addr)(&ufds[i].fd), sizeof(ufds[i].fd) );
       PRE_MEM_READ( "poll(ufds.events)",
                     (Addr)(&ufds[i].events), sizeof(ufds[i].events) );
-      PRE_MEM_WRITE( "poll(ufds.reventss)",
+      PRE_MEM_WRITE( "poll(ufds.revents)",
                      (Addr)(&ufds[i].revents), sizeof(ufds[i].revents) );
    }
 }
diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index b50cdd89d..dc5923900 100644
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -1269,7 +1269,7 @@ PRE(sys_ppoll)
                     (Addr)(&ufds[i].fd), sizeof(ufds[i].fd) );
       PRE_MEM_READ( "ppoll(ufds.events)",
                     (Addr)(&ufds[i].events), sizeof(ufds[i].events) );
-      PRE_MEM_WRITE( "ppoll(ufd.reventss)",
+      PRE_MEM_WRITE( "ppoll(ufd.revents)",
                      (Addr)(&ufds[i].revents), sizeof(ufds[i].revents) );
    }
 
diff --git a/memcheck/tests/badpoll.stderr.exp b/memcheck/tests/badpoll.stderr.exp
index b03d54d52..5ea9c7936 100644
--- a/memcheck/tests/badpoll.stderr.exp
+++ b/memcheck/tests/badpoll.stderr.exp
@@ -5,7 +5,7 @@ Syscall param poll(ufds.fd) points to uninitialised byte(s)
    at 0x........: malloc (vg_replace_malloc.c:...)
    by 0x........: main (badpoll.c:12)
 
-Syscall param poll(ufds.reventss) points to unaddressable byte(s)
+Syscall param poll(ufds.revents) points to unaddressable byte(s)
    ...
    by 0x........: main (badpoll.c:22)
  Address 0x........ is 0 bytes after a block of size 15 alloc'd
diff --git a/memcheck/tests/x86-linux/scalar.stderr.exp b/memcheck/tests/x86-linux/scalar.stderr.exp
index 54616dbaf..e1a2bf219 100644
--- a/memcheck/tests/x86-linux/scalar.stderr.exp
+++ b/memcheck/tests/x86-linux/scalar.stderr.exp
@@ -2008,7 +2008,7 @@ Syscall param poll(ufds.events) points to unaddressable byte(s)
    by 0x........: main (scalar.c:752)
  Address 0x........ is not stack'd, malloc'd or (recently) free'd
 
-Syscall param poll(ufds.reventss) points to unaddressable byte(s)
+Syscall param poll(ufds.revents) points to unaddressable byte(s)
    ...
    by 0x........: main (scalar.c:752)
  Address 0x........ is not stack'd, malloc'd or (recently) free'd