diff --git a/.template.Debian/docker-entrypoint.sh b/.template.Debian/docker-entrypoint.sh
index 8db356750..6845ee49b 100755
--- a/.template.Debian/docker-entrypoint.sh
+++ b/.template.Debian/docker-entrypoint.sh
@@ -284,7 +284,7 @@ docker_setup_db() {
 
 		if [ -n "$MYSQL_DATABASE" ]; then
 			mysql_note "Giving user ${MYSQL_USER} access to schema ${MYSQL_DATABASE}"
-			docker_process_sql --database=mysql <<<"GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;"
+			docker_process_sql --database=mysql <<<"GRANT ALL ON \`${MYSQL_DATABASE//_/\\_}\`.* TO '$MYSQL_USER'@'%' ;"
 		fi
 
 		docker_process_sql --database=mysql <<<"FLUSH PRIVILEGES ;"
diff --git a/5.6/docker-entrypoint.sh b/5.6/docker-entrypoint.sh
index 8db356750..6845ee49b 100755
--- a/5.6/docker-entrypoint.sh
+++ b/5.6/docker-entrypoint.sh
@@ -284,7 +284,7 @@ docker_setup_db() {
 
 		if [ -n "$MYSQL_DATABASE" ]; then
 			mysql_note "Giving user ${MYSQL_USER} access to schema ${MYSQL_DATABASE}"
-			docker_process_sql --database=mysql <<<"GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;"
+			docker_process_sql --database=mysql <<<"GRANT ALL ON \`${MYSQL_DATABASE//_/\\_}\`.* TO '$MYSQL_USER'@'%' ;"
 		fi
 
 		docker_process_sql --database=mysql <<<"FLUSH PRIVILEGES ;"
diff --git a/5.7/docker-entrypoint.sh b/5.7/docker-entrypoint.sh
index 8db356750..6845ee49b 100755
--- a/5.7/docker-entrypoint.sh
+++ b/5.7/docker-entrypoint.sh
@@ -284,7 +284,7 @@ docker_setup_db() {
 
 		if [ -n "$MYSQL_DATABASE" ]; then
 			mysql_note "Giving user ${MYSQL_USER} access to schema ${MYSQL_DATABASE}"
-			docker_process_sql --database=mysql <<<"GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;"
+			docker_process_sql --database=mysql <<<"GRANT ALL ON \`${MYSQL_DATABASE//_/\\_}\`.* TO '$MYSQL_USER'@'%' ;"
 		fi
 
 		docker_process_sql --database=mysql <<<"FLUSH PRIVILEGES ;"
diff --git a/8.0/docker-entrypoint.sh b/8.0/docker-entrypoint.sh
index 8db356750..6845ee49b 100755
--- a/8.0/docker-entrypoint.sh
+++ b/8.0/docker-entrypoint.sh
@@ -284,7 +284,7 @@ docker_setup_db() {
 
 		if [ -n "$MYSQL_DATABASE" ]; then
 			mysql_note "Giving user ${MYSQL_USER} access to schema ${MYSQL_DATABASE}"
-			docker_process_sql --database=mysql <<<"GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;"
+			docker_process_sql --database=mysql <<<"GRANT ALL ON \`${MYSQL_DATABASE//_/\\_}\`.* TO '$MYSQL_USER'@'%' ;"
 		fi
 
 		docker_process_sql --database=mysql <<<"FLUSH PRIVILEGES ;"