diff --git a/src/plugins/mpi/pmix/mpi_pmix.c b/src/plugins/mpi/pmix/mpi_pmix.c

index 1a0998d213..c8241056bc 100644

--- a/src/plugins/mpi/pmix/mpi_pmix.c

+++ b/src/plugins/mpi/pmix/mpi_pmix.c

@@ -79,10 +79,13 @@ const char plugin_name[] = "PMIx plugin";

 #if (HAVE_PMIX_VER == 1)

 const char plugin_type[] = "mpi/pmix_v1";

+const char libpmix_soname[] = "libpmix.so.1";

 #elif (HAVE_PMIX_VER == 2)

 const char plugin_type[] = "mpi/pmix_v2";

+const char libpmix_soname[] = "libpmix.so.2";

 #elif (HAVE_PMIX_VER == 3)

 const char plugin_type[] = "mpi/pmix_v3";

+const char libpmix_soname[] = "libpmix.so.3";

 #endif

 const uint32_t plugin_version = SLURM_VERSION_NUMBER;

@@ -105,7 +108,7 @@ static void *_libpmix_open(void)

 #elif defined PMIXP_V2_LIBPATH

 	xstrfmtcat(full_path, "%s/", PMIXP_V2_LIBPATH);

 #endif

-	xstrfmtcat(full_path, "libpmix.so");

+	xstrfmtcat(full_path, libpmix_soname);

 	lib_plug = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);

 	xfree(full_path);