diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index ba2c94e851..2567ba288e 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -137,6 +137,7 @@
 		<li>[Fix] Add poster-name to moderator-log when deleting post/topic (Bug #46225 - Patch by nickvergessen)</li>
 		<li>[Fix] &quot;Report details&quot; link broken in MCP (Bug #46975 - Patch by nickvergessen)</li>
 		<li>[Fix] Resolve accesskey conflicts in prosilver. (Bug #44685 - Patch by bantu)</li>
+		<li>[Fix] Check if template file is empty before trying to read from it. (Bug #47345 - Patch by bantu)</li>
 		<li>[Change] Change the data format of the default file ACM to be more secure from tampering and have better performance.</li>
 		<li>[Change] Add index on log_time to the log table to prevent slowdown on boards with many log entries. (Bug #44665 - Patch by bantu)</li>
 		<li>[Change] Template engine now permits to a limited extent variable includes.</li>
diff --git a/phpBB/includes/acp/acp_styles.php b/phpBB/includes/acp/acp_styles.php
index 16b1852cd6..ab9ddc0b6f 100644
--- a/phpBB/includes/acp/acp_styles.php
+++ b/phpBB/includes/acp/acp_styles.php
@@ -2556,9 +2556,22 @@ parse_css_file = {PARSE_CSS_FILE}
 				{
 					trigger_error("Could not open {$phpbb_root_path}styles/$template_path$pathfile$file", E_USER_ERROR);
 				}
-				$template_data = fread($fp, filesize("{$phpbb_root_path}styles/$template_path$pathfile$file"));
+
+				$filesize = filesize("{$phpbb_root_path}styles/$template_path$pathfile$file");
+
+				if ($filesize)
+				{
+					$template_data = fread($fp, $filesize);
+				}
+
 				fclose($fp);
 
+				if (!$filesize)
+				{
+					// File is empty
+					continue;
+				}
+
 				if (preg_match_all('#<!-- INCLUDE (.*?\.html) -->#is', $template_data, $matches))
 				{
 					foreach ($matches[1] as $match)