diff --git a/src/clib/lib/job_queue/lsf_driver.cpp b/src/clib/lib/job_queue/lsf_driver.cpp
index b83a1dd7b8d..b39482d5e02 100644
--- a/src/clib/lib/job_queue/lsf_driver.cpp
+++ b/src/clib/lib/job_queue/lsf_driver.cpp
@@ -104,7 +104,7 @@ struct lsf_driver_struct {
     std::vector<std::string> exclude_hosts{};
     char *login_shell = nullptr;
     char *project_code = nullptr;
-    pthread_mutex_t submit_lock;
+    pthread_mutex_t submit_lock{};
 
     lsf_submit_method_enum submit_method = LSF_SUBMIT_LOCAL_SHELL;
     int submit_sleep = 0;
@@ -114,7 +114,7 @@ struct lsf_driver_struct {
     /*-----------------------------------------------------------------*/
     /* Fields used by the shell based functions */
     bool debug_output = false;
-    int bjobs_refresh_interval;
+    int bjobs_refresh_interval = 0;
     time_t last_bjobs_update = time(nullptr);
     /** A hash table of all jobs submitted by this ERT instance - to ensure
      * that we do not check status of old jobs in e.g. ZOMBIE status. */
@@ -122,7 +122,7 @@ struct lsf_driver_struct {
     /** The output of calling bjobs is cached in this table. */
     hash_type *bjobs_cache;
     /** Only one thread should update the bjobs_chache table. */
-    pthread_mutex_t bjobs_mutex;
+    pthread_mutex_t bjobs_mutex{};
     char *remote_lsf_server = nullptr;
     char *rsh_cmd = nullptr;
     char *bsub_cmd = nullptr;
@@ -922,8 +922,6 @@ static void lsf_driver_shell_init(lsf_driver_type *lsf_driver) {
     lsf_driver->last_bjobs_update = time(nullptr);
     lsf_driver->bjobs_cache = hash_alloc();
     lsf_driver->my_jobs = hash_alloc();
-
-    pthread_mutex_init(&lsf_driver->bjobs_mutex, nullptr);
 }
 
 bool lsf_driver_has_project_code(const lsf_driver_type *driver) {
@@ -932,7 +930,6 @@ bool lsf_driver_has_project_code(const lsf_driver_type *driver) {
 
 void *lsf_driver_alloc() {
     lsf_driver_type *lsf_driver = new lsf_driver_type();
-    pthread_mutex_init(&lsf_driver->submit_lock, nullptr);
     lsf_driver_shell_init(lsf_driver);
 
     lsf_driver_set_option(lsf_driver, LSF_SERVER, NULL);