diff --git a/C/alloc.c b/C/alloc.c
index 0f636d142..0f7d72e66 100755
--- a/C/alloc.c
+++ b/C/alloc.c
@@ -379,7 +379,7 @@ InitExStacks(int Trail, int Stack)
  AuxSp = NULL;
 
 #ifdef DEBUG
-  if (GLOBAL_output_msg) {
+  if (Yap_output_msg) {
     UInt ta;
 
     fprintf(stderr, "HeapBase = %p  GlobalBase = %p\n  LocalBase = %p  TrailTop = %p\n",
@@ -1534,11 +1534,11 @@ Yap_InitMemory(UInt Trail, UInt Heap, UInt Stack)
 
 #ifdef DEBUG
 #if SIZEOF_INT_P!=SIZEOF_INT
-  if (GLOBAL_output_msg) {
+  if (Yap_output_msg) {
     fprintf(stderr, "HeapBase = %p  GlobalBase = %p\n  LocalBase = %p  TrailTop = %p\n",
 	       Yap_HeapBase, LOCAL_GlobalBase, LOCAL_LocalBase, LOCAL_TrailTop);
 #else
-  if (GLOBAL_output_msg) {
+  if (Yap_output_msg) {
     fprintf(stderr, "HeapBase = %x  GlobalBase = %x\n  LocalBase = %x  TrailTop = %x\n",
 	       (UInt) Yap_HeapBase, (UInt) LOCAL_GlobalBase,
 	       (UInt) LOCAL_LocalBase, (UInt) LOCAL_TrailTop);
diff --git a/C/c_interface.c b/C/c_interface.c
index 2f60ca0a3..b38b612e0 100755
--- a/C/c_interface.c
+++ b/C/c_interface.c
@@ -3076,7 +3076,7 @@ X_API void
 YAP_SetOutputMessage(void)
 {
 #if DEBUG
-  GLOBAL_output_msg = TRUE;
+  Yap_output_msg = TRUE;
 #endif
 }
 
diff --git a/C/init.c b/C/init.c
index 55a1b4a99..5a3ff9cb5 100755
--- a/C/init.c
+++ b/C/init.c
@@ -58,6 +58,7 @@ static char     SccsId[] = "%W% %G%";
 
 #define	LOGFILE	"logfile"
 
+int  Yap_output_msg = FALSE;
 
 #ifdef MACC
 STATIC_PROTO(void  InTTYLine, (char *));
@@ -344,7 +345,7 @@ InitDebug(void)
 
   for (i = 1; i < 20; ++i)
     GLOBAL_Option[i] = 0;
-  if (GLOBAL_output_msg) {
+  if (Yap_output_msg) {
     char            ch;
 
 #if HAVE_ISATTY
diff --git a/H/Yap.h b/H/Yap.h
index 3cb2965ea..8dced6f2f 100755
--- a/H/Yap.h
+++ b/H/Yap.h
@@ -760,6 +760,13 @@ extern ADDR Yap_HeapBase;
 
 #define MAX_ERROR_MSG_SIZE YAP_FILENAME_MAX
 
+/*************************************************************************************************
+                                    Debugging Support
+*************************************************************************************************/
+
+#ifdef DEBUG
+extern int Yap_output_msg;
+#endif
 
 /*************************************************************************************************
                                               ???
diff --git a/H/dglobals.h b/H/dglobals.h
index e049b2252..53d296ffa 100644
--- a/H/dglobals.h
+++ b/H/dglobals.h
@@ -85,7 +85,7 @@
 #define GLOBAL_Option Yap_global->Option_
 #define GLOBAL_logfile Yap_global->logfile_
 
-#define GLOBAL_output_msg Yap_global->output_msg_
+
 #endif
 
 #define GLOBAL_ProfCalls Yap_global->ProfCalls_
diff --git a/H/hglobals.h b/H/hglobals.h
index ad4c1e699..16f7b321e 100644
--- a/H/hglobals.h
+++ b/H/hglobals.h
@@ -85,7 +85,7 @@ typedef struct global_data {
   char  Option_[20];
   YP_FILE*  logfile_;
 
-  int  output_msg_;
+
 #endif
 
   Int  ProfCalls_;
diff --git a/H/iglobals.h b/H/iglobals.h
index bf2abed19..734314679 100644
--- a/H/iglobals.h
+++ b/H/iglobals.h
@@ -85,7 +85,7 @@ static void InitGlobal(void) {
 
 
 
-  GLOBAL_output_msg = FALSE;
+
 #endif
 
 
diff --git a/misc/GLOBALS b/misc/GLOBALS
index d410af693..774658e97 100644
--- a/misc/GLOBALS
+++ b/misc/GLOBALS
@@ -100,7 +100,7 @@ struct MMAP_ARRAY_BLOCK* 	mmap_arrays 				=NULL
 char            		Option[20]				void
 YP_FILE*			logfile					void
 //init.c
-int  				output_msg 				=FALSE
+//int  				output_msg 				=FALSE
 #endif
 
 //gprof.c