diff --git a/docs/man/man3/rtapi_mutex.3rtapi b/docs/man/man3/rtapi_mutex.3rtapi
index 9118f7b9f45..c69a0d39845 100644
--- a/docs/man/man3/rtapi_mutex.3rtapi
+++ b/docs/man/man3/rtapi_mutex.3rtapi
@@ -36,4 +36,4 @@ init/cleanup, and realtime code.
 \fBrtapi_mutex_try\fR returns 0 for if the mutex was claimed, and nonzero
 otherwise.
 
-\fBrtapi_mutex_get\fR and \fBrtapi_mutex_gif\fR have no return value.
+\fBrtapi_mutex_get\fR and \fBrtapi_mutex_give\fR have no return value.
diff --git a/src/emc/tooldata/tooldata_mmap.cc b/src/emc/tooldata/tooldata_mmap.cc
index 72a0b73f73c..a1fa9add1f7 100644
--- a/src/emc/tooldata/tooldata_mmap.cc
+++ b/src/emc/tooldata/tooldata_mmap.cc
@@ -155,11 +155,12 @@ int tool_mmap_creator(EMC_TOOL_STAT const * ptr,int random_toolchanger)
     }
 
     tooldata_header_t *hptr = HPTR();
+    hptr->mutex = 0;
     hptr->is_random_toolchanger = random_toolchanger;
     hptr->last_index = 0;
 
     inited = 1;
-    tool_mmap_mutex_give(); return 0;
+    return 0;
 } // tool_mmap_creator();
 
 //typ: milltask, guis (emcmodule,emcsh,...), halui