diff --git a/Dockerfiles/agent2/rhel/Dockerfile b/Dockerfiles/agent2/rhel/Dockerfile
index 0355c94b..5179d76c 100644
--- a/Dockerfiles/agent2/rhel/Dockerfile
+++ b/Dockerfiles/agent2/rhel/Dockerfile
@@ -65,7 +65,7 @@ RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
             iputils \
             shadow-utils \
             pcre2 \
-#            smartmontools \
+            smartmontools \
             sudo \
             libcurl-minimal" && \
     microdnf -y install \
diff --git a/Dockerfiles/agent2/rhel/Dockerfile.cuda b/Dockerfiles/agent2/rhel/Dockerfile.cuda
index c477ba5b..05ac4f15 100644
--- a/Dockerfiles/agent2/rhel/Dockerfile.cuda
+++ b/Dockerfiles/agent2/rhel/Dockerfile.cuda
@@ -65,7 +65,7 @@ RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
             iputils \
             shadow-utils \
             pcre2 \
-#            smartmontools \
+            smartmontools \
             sudo \
             libcurl-minimal" && \
     dnf -y install \
diff --git a/Dockerfiles/build-mysql/windows/config_templates/agent/zabbix_agentd_active_checks.conf b/Dockerfiles/build-mysql/windows/config_templates/agent/zabbix_agentd_active_checks.conf
index 939fbc4f..de71dd4b 100644
--- a/Dockerfiles/build-mysql/windows/config_templates/agent/zabbix_agentd_active_checks.conf
+++ b/Dockerfiles/build-mysql/windows/config_templates/agent/zabbix_agentd_active_checks.conf
@@ -154,4 +154,4 @@ MaxLinesPerSecond=${ZBX_MAXLINESPERSECOND}
 # Default: 60
 # HeartbeatFrequency=
 
-HeartbeatFrequency=${ZBX_HEARTBEATFREQUENCY}
+HeartbeatFrequency=${ZBX_HEARTBEAT_FREQUENCY}