diff --git a/10.1/docker-entrypoint.sh b/10.1/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/10.1/docker-entrypoint.sh
+++ b/10.1/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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/10.2/docker-entrypoint.sh b/10.2/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/10.2/docker-entrypoint.sh
+++ b/10.2/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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/10.3/docker-entrypoint.sh b/10.3/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/10.3/docker-entrypoint.sh
+++ b/10.3/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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/10.4/docker-entrypoint.sh b/10.4/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/10.4/docker-entrypoint.sh
+++ b/10.4/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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/10.5/docker-entrypoint.sh b/10.5/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/10.5/docker-entrypoint.sh
+++ b/10.5/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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/docker-entrypoint.sh b/docker-entrypoint.sh
index 8e71c60f..44a35e29 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -258,7 +258,7 @@ 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 ;"