diff --git a/coregrind/m_syswrap/syswrap-ppc32-linux.c b/coregrind/m_syswrap/syswrap-ppc32-linux.c
index 984c7bc2f..a6d3ca4a8 100644
--- a/coregrind/m_syswrap/syswrap-ppc32-linux.c
+++ b/coregrind/m_syswrap/syswrap-ppc32-linux.c
@@ -1854,6 +1854,8 @@ static SyscallTableEntry syscall_table[] = {
    PLAXY(__NR_spu_run,            sys_spu_run),               // 278
    PLAX_(__NR_spu_create,         sys_spu_create),            // 279
 
+   LINXY(__NR_ppoll,             sys_ppoll),             // 281
+
    LINXY(__NR_openat,            sys_openat),            // 286
    LINX_(__NR_mkdirat,           sys_mkdirat),           // 287
    LINX_(__NR_mknodat,           sys_mknodat),           // 288
diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c
index 1b064bdcb..6ad9c7577 100644
--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
+++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
@@ -1495,6 +1495,8 @@ static SyscallTableEntry syscall_table[] = {
    LINX_(__NR_inotify_add_watch,  sys_inotify_add_watch), // 276
    LINX_(__NR_inotify_rm_watch,   sys_inotify_rm_watch),  // 277
 
+   LINXY(__NR_ppoll,             sys_ppoll),              // 281
+
    LINXY(__NR_openat,            sys_openat),             // 286
    LINX_(__NR_mkdirat,           sys_mkdirat),            // 287
    LINX_(__NR_mknodat,           sys_mknodat),            // 288