diff --git a/CHANGELOG b/CHANGELOG
index c8fbd30a1..222cfbb4f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,6 +4,7 @@ CHANGELOG Roundcube Webmail
 - Update to TinyMCE 4.5.7
 - Fix bug where invalid recipients could be silently discarded (#5739)
 - Fix conflict with _gid cookie of Google Analytics (#5748)
+- Print error from CLI scripts when system/exec function is disabled (#5744)
 
 RELEASE 1.3-rc
 --------------
diff --git a/bin/install-jsdeps.sh b/bin/install-jsdeps.sh
index 7a27aeecd..9a33c06a6 100755
--- a/bin/install-jsdeps.sh
+++ b/bin/install-jsdeps.sh
@@ -23,6 +23,10 @@ define('INSTALL_PATH', realpath(__DIR__ . '/..') . '/' );
 
 require_once INSTALL_PATH . 'program/include/clisetup.php';
 
+if (!function_exists('exec')) {
+  die("PHP exec() function is required. Check disable_functions in php.ini\n");
+}
+
 $SOURCES = json_decode(file_get_contents(INSTALL_PATH . 'jsdeps.json'), true);
 
 if (empty($SOURCES['dependencies'])) {
@@ -319,4 +323,3 @@ foreach ($SOURCES['dependencies'] as $package) {
 
   echo "Done.\n\n";
 }
-
diff --git a/bin/installto.sh b/bin/installto.sh
index 3eb09a392..667d3ae1a 100755
--- a/bin/installto.sh
+++ b/bin/installto.sh
@@ -23,6 +23,10 @@ define('INSTALL_PATH', realpath(__DIR__ . '/..') . '/' );
 
 require_once INSTALL_PATH . 'program/include/clisetup.php';
 
+if (!function_exists('system')) {
+  rcube::raise_error("PHP system() function is required. Check disable_functions in php.ini.", false, true);
+}
+
 $target_dir = unslashify($_SERVER['argv'][1]);
 
 if (empty($target_dir) || !is_dir(realpath($target_dir)))