diff --git a/core/diag/RADIUSTests.php b/core/diag/RADIUSTests.php
index 4eebaa370..3b49d9e6f 100644
--- a/core/diag/RADIUSTests.php
+++ b/core/diag/RADIUSTests.php
@@ -746,10 +746,10 @@ private function thoroughChainChecks(&$testresults, &$intermOdditiesCAT, $tmpDir
 // so test if there's something PEMy in the file at all
 // serverchain.pem is the output from eapol_test; incomingserver.pem is written by extractIncomingCertsfromEAP() if there was at least one server cert.
         if (filesize("$tmpDir/serverchain.pem") > 10 && filesize("$tmpDir/incomingserver.pem") > 10) {
-            exec(\config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-eaponly/ -purpose any $tmpDir/incomingserver.pem", $verifyResultEaponly);
+            exec(\config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-eaponly/ -purpose any $tmpDir/incomingserver.pem 2>&1", $verifyResultEaponly);
             $this->loggerInstance->debug(4, \config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-eaponly/ -purpose any $tmpDir/serverchain.pem\n");
             $this->loggerInstance->debug(4, "Chain verify pass 1: " . /** @scrutinizer ignore-type */ print_r($verifyResultEaponly, TRUE) . "\n");
-            exec(\config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-allcerts/ -purpose any $tmpDir/incomingserver.pem", $verifyResultAllcerts);
+            exec(\config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-allcerts/ -purpose any $tmpDir/incomingserver.pem 2>&1", $verifyResultAllcerts);
             $this->loggerInstance->debug(4, \config\Master::PATHS['openssl'] . " verify $crlCheckString -CApath $tmpDir/root-ca-allcerts/ -purpose any $tmpDir/serverchain.pem\n");
             $this->loggerInstance->debug(4, "Chain verify pass 2: " . /** @scrutinizer ignore-type */ print_r($verifyResultAllcerts, TRUE) . "\n");
         }