diff --git a/utilities/animate.c b/utilities/animate.c
index dff362d..a5082b3 100644
--- a/utilities/animate.c
+++ b/utilities/animate.c
@@ -77,6 +77,9 @@
     argc,
     main(int,char **);
 
+  (void) instance;
+  (void) last;
+  (void) state;
   argv=StringToArgv(command,&argc);
   return(main(argc,argv));
 }
diff --git a/utilities/display.c b/utilities/display.c
index d8b68d4..b11d96e 100644
--- a/utilities/display.c
+++ b/utilities/display.c
@@ -82,6 +82,9 @@
     argc,
     main(int,char **);
 
+  (void) instance;
+  (void) last;
+  (void) state;
   argv=StringToArgv(command,&argc);
   return(main(argc,argv));
 }
diff --git a/utilities/import.c b/utilities/import.c
index 6fb2fd1..f1c9909 100644
--- a/utilities/import.c
+++ b/utilities/import.c
@@ -74,6 +74,9 @@
     argc,
     main(int,char **);
 
+  (void) instance;
+  (void) last;
+  (void) state;
   argv=StringToArgv(command,&argc);
   return(main(argc,argv));
 }