diff --git a/opal/mca/shmem/base/base.h b/opal/mca/shmem/base/base.h
index bab7ab9a53..8692919479 100644
--- a/opal/mca/shmem/base/base.h
+++ b/opal/mca/shmem/base/base.h
@@ -195,6 +195,8 @@ OPAL_DECLSPEC extern opal_list_t opal_shmem_base_components_opened;
  */
 OPAL_DECLSPEC extern int opal_shmem_base_output;
 
+OPAL_DECLSPEC extern bool opal_mmap_on_nfs_warning;
+
 END_C_DECLS
 
 #endif /* OPAL_BASE_SHMEM_H */
diff --git a/opal/mca/shmem/base/shmem_base_open.c b/opal/mca/shmem/base/shmem_base_open.c
index 88ee683157..4871cdb875 100644
--- a/opal/mca/shmem/base/shmem_base_open.c
+++ b/opal/mca/shmem/base/shmem_base_open.c
@@ -42,6 +42,7 @@
 OPAL_DECLSPEC int opal_shmem_base_output = -1;
 bool opal_shmem_base_components_opened_valid = false;
 opal_list_t opal_shmem_base_components_opened;
+bool opal_mmap_on_nfs_warning;
 
 /* ////////////////////////////////////////////////////////////////////////// */
 /**
@@ -74,6 +75,23 @@ opal_shmem_base_register_params(void)
         opal_shmem_base_output = -1;
     }
 
+    /*
+     * Do we want the "warning: your mmap file is on NFS!" message?  Per a
+     * thread on the OMPI devel list
+     * (http://www.open-mpi.org/community/lists/devel/2011/12/10054.php),
+     * on some systems, it doesn't seem to matter.  But per older threads,
+     * it definitely does matter on some systems.  Perhaps newer kernels
+     * are smarter about this kind of stuff...?  Regardless, we should
+     * provide the ability to turn off this message for systems where the
+     * effect doesn't matter.
+     */
+    mca_base_param_reg_int_name("opal",
+                                "enable_shmem_on_nfs_warning", 
+                                "Enable the warning emitted when Open MPI detects that its shared memory backing file is located on a network filesystem (1 = enabled, 0 = disabled).",
+                                false, false,
+                                (int)true, &value);
+    opal_mmap_on_nfs_warning = OPAL_INT_TO_BOOL(value);
+
     return OPAL_SUCCESS;
 }
 
diff --git a/opal/mca/shmem/mmap/shmem_mmap_module.c b/opal/mca/shmem/mmap/shmem_mmap_module.c
index d225968e98..368e1929e2 100644
--- a/opal/mca/shmem/mmap/shmem_mmap_module.c
+++ b/opal/mca/shmem/mmap/shmem_mmap_module.c
@@ -50,7 +50,6 @@
 #endif /* HAVE_SYS_STAT_H */
 
 #include "opal/constants.h"
-#include "opal/runtime/opal.h"
 #include "opal/util/output.h"
 #include "opal/util/path.h"
 #include "opal/util/show_help.h"
diff --git a/opal/runtime/opal.h b/opal/runtime/opal.h
index aa94fbfacd..5fa585e029 100644
--- a/opal/runtime/opal.h
+++ b/opal/runtime/opal.h
@@ -30,8 +30,6 @@ BEGIN_C_DECLS
 /** version string of opal */
 OPAL_DECLSPEC extern const char opal_version_string[];
 
-OPAL_DECLSPEC extern bool opal_mmap_on_nfs_warning;
-
 /* Size of a cache line.  To be replaced with real hwloc info (in
    trunk/v1.5 and beyond, only), but for the moment, just move it here
    so that we can remove opal/include/sys/cache.h whose only purpose
diff --git a/opal/runtime/opal_init.c b/opal/runtime/opal_init.c
index 8d94c04262..98b2cf4d6f 100644
--- a/opal/runtime/opal_init.c
+++ b/opal/runtime/opal_init.c
@@ -72,7 +72,6 @@ const char opal_version_string[] = OPAL_IDENT_STRING;
 int opal_initialized = 0;
 int opal_util_initialized = 0;
 int opal_cache_line_size;
-bool opal_mmap_on_nfs_warning;
 
 static int
 opal_err2str(int errnum, const char **errmsg)
diff --git a/opal/runtime/opal_params.c b/opal/runtime/opal_params.c
index 02d932aac7..e9552ff2df 100644
--- a/opal/runtime/opal_params.c
+++ b/opal/runtime/opal_params.c
@@ -115,23 +115,6 @@ int opal_register_params(void)
         return ret;
     }
 
-    /*
-     * Do we want the "warning: your mmap file is on NFS!" message?  Per a
-     * thread on the OMPI devel list
-     * (http://www.open-mpi.org/community/lists/devel/2011/12/10054.php),
-     * on some systems, it doesn't seem to matter.  But per older threads,
-     * it definitely does matter on some systems.  Perhaps newer kernels
-     * are smarter about this kind of stuff...?  Regardless, we should
-     * provide the ability to turn off this message for systems where the
-     * effect doesn't matter.
-     */
-    mca_base_param_reg_int_name("opal",
-                                "enable_shmem_on_nfs_warning", 
-                                "Enable the warning emitted when Open MPI detects that its shared memory backing file is located on a network filesystem (1 = enabled, 0 = disabled).",
-                                false, false,
-                                (int)true, &value);
-    opal_mmap_on_nfs_warning = OPAL_INT_TO_BOOL(value);
-
     /* Paffinity base also has some parameters */
     return opal_paffinity_base_register_params();
 }