diff --git a/polymer/build/include/osd.h b/polymer/build/include/osd.h
index ecf21ebac..9b8b3457c 100644
--- a/polymer/build/include/osd.h
+++ b/polymer/build/include/osd.h
@@ -13,6 +13,19 @@ typedef struct {
 	const char *raw;
 } osdfuncparm_t;
 
+typedef struct _symbol
+{
+    const char *name;
+    struct _symbol *next;
+
+    const char *help;
+    int (*func)(const osdfuncparm_t *);
+} symbol_t;
+
+extern symbol_t *symbols;
+
+#define OSD_ALIAS 0x1337
+
 #define OSDCMD_OK	0
 #define OSDCMD_SHOWHELP 1
 
diff --git a/polymer/build/src/osd.c b/polymer/build/src/osd.c
index 665085c9f..9d1dbf59b 100644
--- a/polymer/build/src/osd.c
+++ b/polymer/build/src/osd.c
@@ -7,17 +7,7 @@
 #include "compat.h"
 #include "baselayer.h"
 
-
-typedef struct _symbol
-{
-    const char *name;
-    struct _symbol *next;
-
-    const char *help;
-    int (*func)(const osdfuncparm_t *);
-} symbol_t;
-
-static symbol_t *symbols = NULL;
+symbol_t *symbols = NULL;
 static symbol_t *addnewsymbol(const char *name);
 static symbol_t *findsymbol(const char *name, symbol_t *startingat);
 static symbol_t *findexactsymbol(const char *name);
@@ -27,7 +17,6 @@ static symbol_t *findexactsymbol(const char *name);
 static int _internal_osdfunc_listsymbols(const osdfuncparm_t *);
 static int _internal_osdfunc_help(const osdfuncparm_t *);
 static int _internal_osdfunc_alias(const osdfuncparm_t *);
-static int _internal_osdfunc_aliasfunc(const osdfuncparm_t *);
 // static int _internal_osdfunc_dumpbuildinfo(const osdfuncparm_t *);
 // static int _internal_osdfunc_setrendermode(const osdfuncparm_t *);
 
@@ -223,30 +212,35 @@ static int _internal_osdfunc_alias(const osdfuncparm_t *parm)
     {
         OSD_Printf("Alias listing:\n");
         for (i=symbols; i!=NULL; i=i->next)
-            if (i->func == (void *)_internal_osdfunc_aliasfunc)
+            if (i->func == (void *)OSD_ALIAS)
                 OSD_Printf("     %s\n", i->name);
         return OSDCMD_OK;
     }
 
-    if (parm->numparms < 2)
+    for (i=symbols; i!=NULL; i=i->next)
     {
-        for (i=symbols; i!=NULL; i=i->next)
+        if (parm->numparms < 2)
+        {
             if (!Bstrcasecmp(parm->parms[0],i->name))
-                OSD_Printf("alias %s \"%s\"\n", i->name, i->help);
-        return OSDCMD_OK;
+            {
+                if (i->func == (void *)OSD_ALIAS)
+                    OSD_Printf("alias %s \"%s\"\n", i->name, i->help);
+                else OSD_Printf("%s is a function, not an alias\n",i->name);
+            }
+            return OSDCMD_OK;
+        }
+        if (i != NULL && !Bstrcasecmp(parm->parms[0],i->name) && i->func != (void *)OSD_ALIAS)
+        {
+            OSD_Printf("Cannot override function \"%s\" with alias\n",i->name);
+            return OSDCMD_OK;
+        }
     }
 
-    OSD_RegisterFunction(Bstrdup(parm->parms[0]),Bstrdup(parm->parms[1]),_internal_osdfunc_aliasfunc);
+    OSD_RegisterFunction(Bstrdup(parm->parms[0]),Bstrdup(parm->parms[1]),(void *)OSD_ALIAS);
     OSD_Printf("%s\n",parm->raw);
     return OSDCMD_OK;
 }
 
-static int _internal_osdfunc_aliasfunc(const osdfuncparm_t *parm)
-{
-    UNREFERENCED_PARAMETER(parm);
-    return OSDCMD_OK;
-}
-
 static int _internal_osdfunc_vars(const osdfuncparm_t *parm)
 {
     int showval = (parm->numparms < 1);
@@ -1198,15 +1192,18 @@ int OSD_Dispatch(const char *cmd)
         ofp.numparms = numparms;
         ofp.parms    = (const char **)parms;
         ofp.raw      = cmd;
-        if (symb->func == _internal_osdfunc_aliasfunc)
+        if (symb->func == (void *)OSD_ALIAS)
             OSD_Dispatch(symb->help);
-        switch (symb->func(&ofp))
+        else
         {
-        case OSDCMD_OK:
-            break;
-        case OSDCMD_SHOWHELP:
-            OSD_Printf("%s\n", symb->help);
-            break;
+            switch (symb->func(&ofp))
+            {
+            case OSDCMD_OK:
+                break;
+            case OSDCMD_SHOWHELP:
+                OSD_Printf("%s\n", symb->help);
+                break;
+            }
         }
 
         state = wtp;
@@ -1268,8 +1265,11 @@ int OSD_RegisterFunction(const char *name, const char *help, int (*func)(const o
     symb = findexactsymbol(name);
     if (symb) // allow this now for reusing an alias name
     {
-//        OSD_Printf("OSD_RegisterFunction(): \"%s\" is already defined\n", name);
-//        return -1;
+        if (symb->func != (void *)OSD_ALIAS)
+        {
+            OSD_Printf("OSD_RegisterFunction(): \"%s\" is already defined\n", name);
+            return -1;
+        }
 //        Bfree(symb->help);
         symb->help = help;
         symb->func = func;
diff --git a/polymer/eduke32/source/config.c b/polymer/eduke32/source/config.c
index f5ca4a1b4..d037bd2f2 100644
--- a/polymer/eduke32/source/config.c
+++ b/polymer/eduke32/source/config.c
@@ -785,16 +785,22 @@ int32 CONFIG_ReadSetup(void)
 ===================
 */
 
-void CONFIG_WriteBinds(void)
+void CONFIG_WriteBinds(void) // save binds and aliases to disk
 {
     int i;
     FILE *fp = fopen("binds.cfg", "wt");
 
     if (fp)
     {
+        symbol_t *symb;
         fprintf(fp,"// this file automatically generated by EDuke32\n// do not modify if you lack common sense\n");
         for (i=0;i<MAXBOUNDKEYS;i++)if (*boundkeys[i].name)
-            fprintf(fp,"bind %s \"%s\"\n",boundkeys[i].key,boundkeys[i].name);
+            fprintf(fp,"bind %s%s \"%s\"\n",boundkeys[i].key,boundkeys[i].repeat?"":" norepeat",boundkeys[i].name);
+
+        for (symb=symbols; symb!=NULL; symb=symb->next)
+            if (symb->func == (void *)OSD_ALIAS)
+                fprintf(fp,"alias %s \"%s\"\n", symb->name, symb->help);
+
         fclose(fp);
     }
 }