diff --git a/doc/doc.pl b/doc/doc.pl
index 4282a000d..45b6a9edb 100755
--- a/doc/doc.pl
+++ b/doc/doc.pl
@@ -263,7 +263,7 @@ eval
                         $oStorageDoc->put(
                             $strDockerfile,
                             "FROM ${strFrom}\n\n" . trim($oManifest->variableReplace($oHostDefine->valueGet())) . "\n");
-                        executeTest("docker build -f ${strDockerfile} -t ${strImage} ${strBasePath}");
+                        executeTest("docker build -f ${strDockerfile} -t ${strImage} ${strBasePath}", {bSuppressStdErr => true});
                     }
                 }
             }
diff --git a/doc/lib/pgBackRestDoc/Common/DocExecute.pm b/doc/lib/pgBackRestDoc/Common/DocExecute.pm
index dbbc53926..8d553bb74 100644
--- a/doc/lib/pgBackRestDoc/Common/DocExecute.pm
+++ b/doc/lib/pgBackRestDoc/Common/DocExecute.pm
@@ -1023,7 +1023,9 @@ sub sectionChildProcess
                     $self->{oManifest}{oStorage}->put(
                         $strDockerfile,
                         "FROM ${strFrom}\n\n" . trim($self->{oManifest}->variableReplace($strCommandList)) . "\n");
-                    executeTest("docker build -f ${strDockerfile} -t ${strPreImage} " . $self->{oManifest}{oStorage}->pathGet());
+                    executeTest(
+                        "docker build -f ${strDockerfile} -t ${strPreImage} " . $self->{oManifest}{oStorage}->pathGet(),
+                        {bSuppressStdErr => true});
 
                     # Use the pre-built image
                     $strImage = $strPreImage;