diff --git a/mi/miinitext.c b/mi/miinitext.c
index 6eb035268..45a14aff1 100644
--- a/mi/miinitext.c
+++ b/mi/miinitext.c
@@ -518,11 +518,11 @@ void EnableDisableExtensionError(char *name, Bool enable)
 {
     ExtensionToggle *ext = &ExtensionToggleList[0];
 
-    ErrorF("Extension \"%s\" is not recognized\n", name);
-    ErrorF("Only the following extensions can be run-time %s:\n",
+    ErrorF("[mi] Extension \"%s\" is not recognized\n", name);
+    ErrorF("[mi] Only the following extensions can be run-time %s:\n",
 	   enable ? "enabled" : "disabled");
     for (ext = &ExtensionToggleList[0]; ext->name != NULL; ext++)
-	ErrorF("    %s\n", ext->name);
+	ErrorF("[mi]    %s\n", ext->name);
 }
 
 #ifndef XFree86LOADER
diff --git a/mi/miregion.c b/mi/miregion.c
index 45768a34f..6316561e1 100644
--- a/mi/miregion.c
+++ b/mi/miregion.c
@@ -267,13 +267,13 @@ miPrintRegion(rgn)
     num = REGION_NUM_RECTS(rgn);
     size = REGION_SIZE(rgn);
     rects = REGION_RECTS(rgn);
-    ErrorF("num: %d size: %d\n", num, size);
-    ErrorF("extents: %d %d %d %d\n",
+    ErrorF("[mi] num: %d size: %d\n", num, size);
+    ErrorF("[mi] extents: %d %d %d %d\n",
 	   rgn->extents.x1, rgn->extents.y1, rgn->extents.x2, rgn->extents.y2);
     for (i = 0; i < num; i++)
-      ErrorF("%d %d %d %d \n",
+      ErrorF("[mi] %d %d %d %d \n",
 	     rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2);
-    ErrorF("\n");
+    ErrorF("[mi] \n");
 }
 
 _X_EXPORT Bool