diff --git a/src/ld65/config.c b/src/ld65/config.c
index 657813ce1..6e310a8d5 100644
--- a/src/ld65/config.c
+++ b/src/ld65/config.c
@@ -6,7 +6,7 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 1998-2000 Ullrich von Bassewitz                                       */
+/* (C) 1998-2002 Ullrich von Bassewitz                                       */
 /*               Wacholderweg 14                                             */
 /*               D-70597 Stuttgart                                           */
 /* EMail:        uz@musoftware.de                                            */
@@ -823,7 +823,6 @@ static void ParseO65 (void)
 
     /* Remember the attributes read */
     unsigned OS = 0;            /* Initialize to keep gcc happy */
-    unsigned ID = 0;            /* Dito */
     unsigned Version = 0;
 
     /* Read the attributes */
@@ -920,7 +919,7 @@ static void ParseO65 (void)
                 /* We're expecting a number in the 0..$FFFF range*/
                 CfgAssureInt ();
                 CfgRangeCheck (0, 0xFFFF);
-                ID = (unsigned) CfgIVal;
+                ModuleId = (unsigned) CfgIVal;
                 break;
 
             case CFGTOK_VERSION:
@@ -957,7 +956,7 @@ static void ParseO65 (void)
     }
 
     /* Set the O65 operating system to use */
-    O65SetOS (O65FmtDesc, OS, Version, ID);
+    O65SetOS (O65FmtDesc, OS, Version, ModuleId);
 }
 
 
diff --git a/src/ld65/global.c b/src/ld65/global.c
index fea95b899..a12167306 100644
--- a/src/ld65/global.c
+++ b/src/ld65/global.c
@@ -6,7 +6,7 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 1998-2001 Ullrich von Bassewitz                                       */
+/* (C) 1998-2002 Ullrich von Bassewitz                                       */
 /*               Wacholderweg 14                                             */
 /*               D-70597 Stuttgart                                           */
 /* EMail:        uz@cc65.org                                                 */
@@ -45,6 +45,7 @@
 
 const char* OutputName	    = "a.out"; 	/* Name of output file */
 
+unsigned ModuleId           = 0;        /* Id for o65 module */
 unsigned long StartAddr	    = 0x200;	/* Start address */
 
 unsigned char VerboseMap    = 0;	/* Verbose map file */
diff --git a/src/ld65/global.h b/src/ld65/global.h
index 8244ef742..d68b69029 100644
--- a/src/ld65/global.h
+++ b/src/ld65/global.h
@@ -6,7 +6,7 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 1998-2001 Ullrich von Bassewitz                                       */
+/* (C) 1998-2002 Ullrich von Bassewitz                                       */
 /*               Wacholderweg 14                                             */
 /*               D-70597 Stuttgart                                           */
 /* EMail:        uz@cc65.org                                                 */
@@ -45,7 +45,8 @@
 
 
 extern const char*	OutputName;	/* Name of output file */
-
+                                                                           
+extern unsigned         ModuleId;       /* Id for o65 module */
 extern unsigned long 	StartAddr;	/* Start address */
 
 extern unsigned char	VerboseMap;	/* Verbose map file */
diff --git a/src/ld65/main.c b/src/ld65/main.c
index db35f8d0f..b8aa72ed1 100644
--- a/src/ld65/main.c
+++ b/src/ld65/main.c
@@ -6,7 +6,7 @@
 /*									     */
 /*									     */
 /*									     */
-/* (C) 1998-2001 Ullrich von Bassewitz					     */
+/* (C) 1998-2002 Ullrich von Bassewitz					     */
 /*		 Wacholderweg 14					     */
 /*		 D-70597 Stuttgart					     */
 /* EMail:	 uz@musoftware.de					     */
@@ -105,6 +105,7 @@ static void Usage (void)
        	     "  --config name\tUse linker config file\n"
 	     "  --help\t\tHelp (this text)\n"
 	     "  --mapfile name\tCreate a map file\n"
+             "  --module-id id\tSpecify a module id\n"
        	     "  --start-addr addr\tSet the default start address\n"
        	     "  --target sys\t\tSet the target system\n"
        	     "  --version\t\tPrint the linker version\n",
@@ -253,6 +254,18 @@ static void OptMapFile (const char* Opt attribute ((unused)), const char* Arg)
 
 
 
+static void OptModuleId (const char* Opt, const char* Arg)
+/* Specify a module id */
+{
+    unsigned long Id = CvtNumber (Opt, Arg);
+    if (Id > 0xFFFFUL) {
+        Error ("Range error in module id");
+    }
+    ModuleId = (unsigned) Id;
+}
+
+
+
 static void OptStartAddr (const char* Opt, const char* Arg)
 /* Set the default start address */
 {
@@ -299,9 +312,10 @@ int main (int argc, char* argv [])
     /* Program long options */
     static const LongOpt OptTab[] = {
        	{ "--config",  	       	1,     	OptConfig    	    	},
-	{ "--dbgfile",          1,      OptDbgFile              },
-	{ "--help",	       	0,     	OptHelp	     	    	},
-	{ "--mapfile",		1,	OptMapFile	    	},
+     	{ "--dbgfile",          1,      OptDbgFile              },
+     	{ "--help",	       	0,     	OptHelp	     	    	},
+     	{ "--mapfile",		1,	OptMapFile	    	},
+       	{ "--module-id",        1,     	OptModuleId             },
 	{ "--start-addr",	1,	OptStartAddr	    	},
 	{ "--target",		1,	OptTarget    	    	},
 	{ "--version",	       	0,  	OptVersion   	    	},