diff --git a/tests/page.py b/tests/page.py
index a0a554de..b0eb79bf 100644
--- a/tests/page.py
+++ b/tests/page.py
@@ -711,7 +711,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'WAL segment "{0}" is absent\n'.format(
                     file) in e.message,
                 '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
@@ -737,7 +737,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'WAL segment "{0}" is absent\n'.format(
                     file) in e.message,
                 '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
@@ -829,7 +829,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'incorrect resource manager data checksum in record at' in e.message and
                 'Possible WAL corruption. Error has occured during reading WAL segment "{0}"'.format(
                     file) in e.message,
@@ -855,7 +855,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'incorrect resource manager data checksum in record at' in e.message and
                 'Possible WAL corruption. Error has occured during reading WAL segment "{0}"'.format(
                     file) in e.message,
@@ -952,7 +952,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'WAL file is from different database system: WAL file database system identifier is' in e.message and
                 'pg_control database system identifier is' in e.message and
                 'Possible WAL corruption. Error has occured during reading WAL segment "{0}"'.format(
@@ -979,7 +979,7 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
             self.assertTrue(
                 'INFO: Wait for LSN' in e.message and
                 'in archived WAL segment' in e.message and
-                'could not read WAL record at' in e.message and
+                'Could not read WAL record at' in e.message and
                 'WAL file is from different database system: WAL file database system identifier is' in e.message and
                 'pg_control database system identifier is' in e.message and
                 'Possible WAL corruption. Error has occured during reading WAL segment "{0}"'.format(