diff --git a/README.md b/README.md
index 522c7c78..4f7e10d4 100644
--- a/README.md
+++ b/README.md
@@ -363,7 +363,7 @@ This image uses the initial PostgreSQL values which disables the archiving optio
 * `-e WAL_SIZE=4GB`
 * `-e MIN_WAL_SIZE=2048MB`
 * `-e WAL_SEGSIZE=1024`
-* `-e MAINTAINANCE_WORK_MEM=128MB`
+* `-e MAINTENANCE_WORK_MEM=128MB`
 
 #### Configure networking
 
diff --git a/scripts/env-data.sh b/scripts/env-data.sh
index a1c6ff59..d6df53d8 100644
--- a/scripts/env-data.sh
+++ b/scripts/env-data.sh
@@ -174,8 +174,8 @@ if [ -z "${IP_LIST}" ]; then
 	IP_LIST='*'
 fi
 
-if [ -z "${MAINTAINANCE_WORKERS}" ]; then
-	MAINTAINANCE_WORKERS=2
+if [ -z "${MAINTENANCE_WORKERS}" ]; then
+	MAINTENANCE_WORKERS=2
 fi
 
 if [ -z "${ARCHIVE_MODE}" ]; then
@@ -251,8 +251,8 @@ if [ -z "${MAX_WORKERS}" ]; then
 	MAX_WORKERS=4
 fi
 
-if [ -z "${MAINTAINANCE_WORK_MEM}" ]; then
-	MAINTAINANCE_WORK_MEM=128MB
+if [ -z "${MAINTENANCE_WORK_MEM}" ]; then
+	MAINTENANCE_WORK_MEM=128MB
 fi
 
 
diff --git a/scripts/setup-conf.sh b/scripts/setup-conf.sh
index a0e60231..68cf76d5 100644
--- a/scripts/setup-conf.sh
+++ b/scripts/setup-conf.sh
@@ -27,11 +27,11 @@ superuser_reserved_connections= 10
 listen_addresses = '${IP_LIST}'
 shared_buffers = ${SHARED_BUFFERS}
 work_mem = ${WORK_MEM}
-maintenance_work_mem = ${MAINTAINANCE_WORK_MEM}
+maintenance_work_mem = ${MAINTENANCE_WORK_MEM}
 wal_buffers = ${WAL_BUFFERS}
 random_page_cost = 2.0
 xmloption = 'document'
-max_parallel_maintenance_workers = ${MAINTAINANCE_WORKERS}
+max_parallel_maintenance_workers = ${MAINTENANCE_WORKERS}
 max_parallel_workers = ${MAX_WORKERS}
 shared_preload_libraries = '${SHARED_PRELOAD_LIBRARIES}'
 cron.database_name = '${SINGLE_DB}'