diff --git a/src/test/get_thread_list.py b/src/test/get_thread_list.py
index ccae5cc4139..805056702e6 100644
--- a/src/test/get_thread_list.py
+++ b/src/test/get_thread_list.py
@@ -16,7 +16,7 @@
     # on i386, we sometimes stop in the middle of nowhere
     'i386': ['(0x[0-9a-f]+ in )?__kernel_vsyscall',
              '(0x[0-9a-f]+ in )?_traced_raw_syscall',
-             '0x[0-9a-f]+ in \?\?',
+             r'0x[0-9a-f]+ in \?\?',
              '(0x[0-9a-f]+ in )?syscall_traced',
              '(0x[0-9a-f]+ in )?rr_page_start',
              '(0x[0-9a-f]+ in )?__lll_lock_wait',
@@ -25,7 +25,7 @@
     'i386:x86-64': ['(0x[0-9a-f]+ in )?__lll_lock_wait',
                     '(0x[0-9a-f]+ in )?pthread_barrier_wait',
                     '(0x[0-9a-f]+ in )?futex_wait',
-                    '0x0*70000002 in \?\?',
+                    r'0x0*70000002 in \?\?',
                     '(0x[0-9a-f]+ in )?syscall_traced',
                     '(0x[0-9a-f]+ in )?rr_page_start'],
     'aarch64': ['(0x[0-9a-f]+ in )?syscall_traced',
diff --git a/src/test/proc_maps.py b/src/test/proc_maps.py
index 8826c8b07d0..ffcb63ef394 100644
--- a/src/test/proc_maps.py
+++ b/src/test/proc_maps.py
@@ -7,6 +7,6 @@
 expect_gdb('Breakpoint 1')
 
 send_gdb('info proc mappings')
-expect_gdb('\[vdso\]')
+expect_gdb(r'\[vdso\]')
 
 ok()
diff --git a/src/test/step_thread.py b/src/test/step_thread.py
index 672c351d751..c8b69c01b40 100644
--- a/src/test/step_thread.py
+++ b/src/test/step_thread.py
@@ -15,7 +15,7 @@
 bps = set(('A', 'B', 'C'))
 for bp in bps:
     send_gdb('b '+ bp +'')
-    expect_gdb('Breakpoint \d')
+    expect_gdb(r'Breakpoint \d')
 
 expect_gdb(r'\(rr\)')
 
@@ -58,7 +58,7 @@
     # on i386, we sometimes stop in the middle of nowhere
     'i386': ['(0x[0-9a-f]+ in )?__kernel_vsyscall',
              '(0x[0-9a-f]+ in )?_traced_raw_syscall',
-              '0x[0-9a-f]+ in \?\?',
+              r'0x[0-9a-f]+ in \?\?',
              '(0x[0-9a-f]+ in )?rr_page_start',
              '(0x[0-9a-f]+ in )?syscall_traced',
              '(0x[0-9a-f]+ in )?__lll_lock_wait',
@@ -67,7 +67,7 @@
     'i386:x86-64': ['(0x[0-9a-f]+ in )?__lll_lock_wait',
                     '(0x[0-9a-f]+ in )?pthread_barrier_wait',
                     '(0x[0-9a-f]+ in )?futex_wait',
-                    '0x0*70000002 in \?\?',
+                    r'0x0*70000002 in \?\?',
                     '(0x[0-9a-f]+ in )?syscall_traced',
                     '(0x[0-9a-f]+ in )?rr_page_start'
                     ],
diff --git a/src/test/x86/fxregs.py b/src/test/x86/fxregs.py
index 775d23c03b5..f6c3cbbb7fe 100644
--- a/src/test/x86/fxregs.py
+++ b/src/test/x86/fxregs.py
@@ -18,7 +18,7 @@
     expect_gdb(' = %d'%(i + 10))
 
 send_gdb('show architecture')
-have_64 = 0 == expect_list([re.compile('i386:x86-64"?\)'), re.compile('i386"?\)')])
+have_64 = 0 == expect_list([re.compile(r'i386:x86-64"?\)'), re.compile(r'i386"?\)')])
 
 if have_64:
     for i in range(8,16):