diff --git a/src/actions.c b/src/actions.c
index 82a02634..52a300e5 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -1217,10 +1217,10 @@ void get_additional_symbols(int what)
   static int num_syms; /* no context switch between start and end so it is safe */
   Int_hashentry *found;
   Int_hashtable sym_table = {NULL, 0};
-  int_hash_init(&sym_table, HASHSIZE);
 
 
   if(what == 1) { /* start */
+    int_hash_init(&sym_table, HASHSIZE);
     num_syms = xctx->symbols;
     for(i = 0; i < xctx->symbols; ++i) {
       int_hash_lookup(&sym_table, xctx->sym[i].name, i, XINSERT);
@@ -1274,7 +1274,6 @@ void get_additional_symbols(int what)
     }
     xctx->symbols = num_syms;
   }
-  int_hash_free(&sym_table);
 }
 
 void get_sch_from_sym(char *filename, xSymbol *sym, int inst)
diff --git a/src/spice_netlist.c b/src/spice_netlist.c
index f1d89e46..f1837418 100644
--- a/src/spice_netlist.c
+++ b/src/spice_netlist.c
@@ -105,7 +105,8 @@ void hier_psprint(char **res, int what)  /* netlister driver */
       }
     }
   }
-  get_additional_symbols(0);
+  /* can not free additional syms since *_block_netlist() may have loaded additional syms */
+  /* get_additional_symbols(0); */
   my_free(_ALLOC_ID_, &abs_path);
   str_hash_free(&subckt_table);
   my_free(_ALLOC_ID_, &subckt_name);
@@ -427,7 +428,7 @@ int global_spice_netlist(int global)  /* netlister driver */
     }
    }
    my_free(_ALLOC_ID_, &abs_path);
-   get_additional_symbols(0);
+   /* get_additional_symbols(0); */
    my_free(_ALLOC_ID_, &subckt_name);
    /*clear_drawing(); */
    my_strncpy(xctx->sch[xctx->currsch] , "", S(xctx->sch[xctx->currsch]));
diff --git a/src/tedax_netlist.c b/src/tedax_netlist.c
index 42c22255..6dfd4c41 100644
--- a/src/tedax_netlist.c
+++ b/src/tedax_netlist.c
@@ -222,7 +222,8 @@ int global_tedax_netlist(int global)  /* netlister driver */
     }
    }
    my_free(_ALLOC_ID_, &abs_path);
-   get_additional_symbols(0);
+   /* can not free additional syms since *_block_netlist() may have loaded additional syms */
+   /* get_additional_symbols(0); */
    str_hash_free(&subckt_table);
    my_free(_ALLOC_ID_, &subckt_name);
    /*clear_drawing(); */
diff --git a/src/verilog_netlist.c b/src/verilog_netlist.c
index 5f808104..c6fe7a34 100644
--- a/src/verilog_netlist.c
+++ b/src/verilog_netlist.c
@@ -375,7 +375,8 @@ int global_verilog_netlist(int global)  /* netlister driver */
     }
    }
    my_free(_ALLOC_ID_, &abs_path);
-   get_additional_symbols(0);
+   /* can not free additional syms since *_block_netlist() may have loaded additional syms */
+   /* get_additional_symbols(0); */
    str_hash_free(&subckt_table);
    my_free(_ALLOC_ID_, &subckt_name);
    my_strncpy(xctx->sch[xctx->currsch] , "", S(xctx->sch[xctx->currsch]));
diff --git a/src/vhdl_netlist.c b/src/vhdl_netlist.c
index 48f398b8..ee536108 100644
--- a/src/vhdl_netlist.c
+++ b/src/vhdl_netlist.c
@@ -475,7 +475,8 @@ int global_vhdl_netlist(int global)  /* netlister driver */
     }
    }
    my_free(_ALLOC_ID_, &abs_path);
-   get_additional_symbols(0);
+   /* can not free additional syms since *_block_netlist() may have loaded additional syms */
+   /* get_additional_symbols(0); */
    str_hash_free(&subckt_table);
    my_free(_ALLOC_ID_, &subckt_name);
    my_strncpy(xctx->sch[xctx->currsch] , "", S(xctx->sch[xctx->currsch]));