diff --git a/src/callback.c b/src/callback.c
index 4d3e3b5c..f2f9588e 100644
--- a/src/callback.c
+++ b/src/callback.c
@@ -2208,6 +2208,7 @@ int rstate; /* (reduced state, without ShiftMask) */
    if(key=='g' && rstate==0)                         /* half snap factor */
    {
     set_snap(c_snap / 2.0);
+    change_linewidth(-1.);
     draw();
     break;
    }
@@ -2222,6 +2223,7 @@ int rstate; /* (reduced state, without ShiftMask) */
    if(key=='G' && rstate == 0)                                    /* double snap factor */
    {
     set_snap(c_snap * 2.0);
+    change_linewidth(-1.);
     draw();
     break;
    }
diff --git a/src/scheduler.c b/src/scheduler.c
index 29042ec0..0a3cdd02 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -4546,6 +4546,7 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg
           else if(!strcmp(argv[2], "cadsnap")) { /* set mouse snap (default: 10) */
             if(!xctx) {Tcl_SetResult(interp, not_avail, TCL_STATIC); return TCL_ERROR;}
             set_snap( atof(argv[3]) );
+            change_linewidth(-1.);
             draw();
           }
           else if(!strcmp(argv[2], "color_ps")) { /* set color psoscript (1 or 0) */