diff --git a/source/adios2/core/adios2_libinfo.cpp b/source/adios2/core/adios2_libinfo.cpp
index 31da7a2fc0..b36a2349e3 100644
--- a/source/adios2/core/adios2_libinfo.cpp
+++ b/source/adios2/core/adios2_libinfo.cpp
@@ -57,7 +57,7 @@ static const char *aae[] = {"BP3",
                             "Skeleton",
                             nullptr};
 
-void adios2_available_engines(int *nentries, char const ***list)
+void adios2_available_engines(int *nentries, char const *const **list)
 {
     int ne = 0;
     while (aae[ne] != nullptr)
@@ -99,7 +99,7 @@ static const char *aao[] = {
     "None",
     nullptr};
 
-void adios2_available_operators(int *nentries, char const ***list)
+void adios2_available_operators(int *nentries, char const *const **list)
 {
     int no = 0;
     while (aao[no] != nullptr)
@@ -148,7 +148,7 @@ static const char *aaf[] = {
 #endif
     nullptr};
 
-void adios2_available_features(int *nentries, char const ***list)
+void adios2_available_features(int *nentries, char const *const **list)
 {
     int nf = 0;
     while (aaf[nf] != nullptr)
@@ -158,8 +158,6 @@ void adios2_available_features(int *nentries, char const ***list)
     return;
 }
 
-void adios2_free_list(int nentries, char const ***list) {}
-
 #ifdef __cplusplus
 } // end extern C
 #endif
diff --git a/source/adios2/core/adios2_libinfo.h b/source/adios2/core/adios2_libinfo.h
index 29a6645616..662f43334d 100644
--- a/source/adios2/core/adios2_libinfo.h
+++ b/source/adios2/core/adios2_libinfo.h
@@ -21,18 +21,13 @@ extern const int adios2_version_patch;
 extern const char *const adios2_version_str;
 
 /** Return the list of available Engines in the installed adios2 library */
-void adios2_available_engines(int *nentries, char const ***list);
+void adios2_available_engines(int *nentries, char const *const **list);
 
 /** Return the list of available Engines in the installed adios2 library */
-void adios2_available_operators(int *nentries, char const ***list);
+void adios2_available_operators(int *nentries, char const *const **list);
 
 /** Return the list of available features in the installed adios2 library */
-void adios2_available_features(int *nentries, char const ***list);
-
-/** Free function for list returned by adios2_available_engines() and
- * adios2_available_operators()
- */
-void adios2_free_list(int nentries, char const ***list);
+void adios2_available_features(int *nentries, char const *const **list);
 
 #ifdef __cplusplus
 } // end extern C
diff --git a/source/utils/bpls/bpls.cpp b/source/utils/bpls/bpls.cpp
index 1f8d60d1fd..33b56eeaea 100644
--- a/source/utils/bpls/bpls.cpp
+++ b/source/utils/bpls/bpls.cpp
@@ -252,7 +252,7 @@ void print_bpls_version()
         printf("Target Arch:   %s\n", ADIOS_INFO_ARCH);
 
         int nengines;
-        char const **list_engines;
+        char const *const *list_engines;
         adios2_available_engines(&nengines, &list_engines);
         printf("Available engines = %d:", nengines);
         for (int i = 0; i < nengines; ++i)
@@ -264,10 +264,9 @@ void print_bpls_version()
             }
         }
         printf("\n");
-        adios2_free_list(nengines, &list_engines);
 
         int noperators;
-        char const **list_operators;
+        char const *const *list_operators;
         adios2_available_operators(&noperators, &list_operators);
         printf("Available operators = %d:", noperators);
         for (int i = 0; i < noperators; ++i)
@@ -279,10 +278,9 @@ void print_bpls_version()
             }
         }
         printf("\n");
-        adios2_free_list(noperators, &list_operators);
 
         int nfeatures;
-        char const **list_features;
+        char const *const *list_features;
         adios2_available_features(&nfeatures, &list_features);
         printf("Available features = %d:", nfeatures);
         for (int i = 0; i < nfeatures; ++i)
@@ -294,7 +292,6 @@ void print_bpls_version()
             }
         }
         printf("\n");
-        adios2_free_list(nfeatures, &list_features);
     }
 }