diff --git a/classes.cpp b/classes.cpp
index d950e843..51b81995 100644
--- a/classes.cpp
+++ b/classes.cpp
@@ -600,7 +600,7 @@ vector<geometryinfo> ginf = {
 #define X3(x) x, x, x
 
 /** list of available models (i.e., projections) */
-const modelinfo mdinf[int(mdPolynomial)+1] = {
+vector<modelinfo> mdinf = {
   {"disk/Gans", "general perspective", "general perspective", mf::azimuthal | mf::conformal},
   {"half-plane", "inversion", "half-plane", mf::conformal},
   {"band", "band", "Mercator", mf::band | mf::conformal},
@@ -629,7 +629,7 @@ const modelinfo mdinf[int(mdPolynomial)+1] = {
   {X3("Mollweide"), mf::euc_boring | mf::pseudoband | mf::equiarea },
   {X3("central cylindrical"), mf::euc_boring | mf::band },
   {X3("Collignon"), mf::pseudoband | mf::equiarea },
-  {X3(""), 0},
+  {X3("guard"), 0},
   {X3("polynomial"), mf::conformal}
   };
 
diff --git a/classes.h b/classes.h
index b343d608..f6bd9155 100644
--- a/classes.h
+++ b/classes.h
@@ -350,6 +350,6 @@ struct modelinfo {
   const char* name;
   };
 
-extern const modelinfo mdinf[int(mdPolynomial)+1];
+extern std::vector<modelinfo> mdinf;
 
 }
diff --git a/models.cpp b/models.cpp
index b0ed5029..c90f1028 100644
--- a/models.cpp
+++ b/models.cpp
@@ -658,7 +658,7 @@ EX namespace models {
   #if CAP_COMMANDLINE
   
   eModel read_model(const string& ss) {
-    for(int i=0; i<isize(ginf); i++) {
+    for(int i=0; i<isize(mdinf); i++) {
       if(appears(mdinf[i].name_hyperbolic, ss)) return eModel(i);
       if(appears(mdinf[i].name_euclidean, ss)) return eModel(i);
       if(appears(mdinf[i].name_spherical, ss)) return eModel(i);