diff --git a/django/contrib/gis/db/models/functions.py b/django/contrib/gis/db/models/functions.py
index 7fd8cf1129..8ae4f6c260 100644
--- a/django/contrib/gis/db/models/functions.py
+++ b/django/contrib/gis/db/models/functions.py
@@ -79,7 +79,7 @@ class GeomValue(Value):
         return super(GeomValue, self).as_sql(compiler, connection)
 
     def as_mysql(self, compiler, connection):
-        return 'GeomFromText(%%s, %s)' % self.srid, [connection.ops.Adapter(self.value)]
+        return 'GeomFromText(%s)', [connection.ops.Adapter(self.value)]
 
     def as_sqlite(self, compiler, connection):
         return 'GeomFromText(%%s, %s)' % self.srid, [connection.ops.Adapter(self.value)]
diff --git a/docs/releases/1.9.9.txt b/docs/releases/1.9.9.txt
index 8e90f6c8dd..a777b17021 100644
--- a/docs/releases/1.9.9.txt
+++ b/docs/releases/1.9.9.txt
@@ -11,3 +11,5 @@ Bugfixes
 
 * Fixed invalid HTML in template postmortem on the debug page
   (:ticket:`26938`).
+
+* Fixed some GIS database function crashes on MySQL 5.7 (:ticket:`26657`).