diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78173a5bb..ae114c0b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -78,6 +78,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix sorting by numeric filter columns [#751](https://github.com/greenbone/gvmd/pull/751)
 - Fix array index error when modifying roles and groups [#762](https://github.com/greenbone/gvmd/pull/762)
 - Make get_settings return only one setting when setting_id is given [#780](https://github.com/greenbone/gvmd/pull/780)
+- Fix percent sign escaping in report_port_count [#783](https://github.com/greenbone/gvmd/pull/783)
 
 ### Removed
 - The handling of NVT updates via OTP has been removed. [#575](https://github.com/greenbone/gvmd/pull/575)
diff --git a/src/manage_sql.c b/src/manage_sql.c
index f758274b5..085d1f4ab 100644
--- a/src/manage_sql.c
+++ b/src/manage_sql.c
@@ -27712,7 +27712,7 @@ report_port_count (report_t report)
 {
   return sql_int ("SELECT count (DISTINCT port) FROM results"
                   " WHERE report = %llu AND port != ''"
-                  "  AND port NOT %s 'general/%';",
+                  "  AND port NOT %s 'general/%%';",
                   report,
                   sql_ilike_op ());
 }