diff --git a/src/core/args.c b/src/core/args.c
index f7410911..99505875 100644
--- a/src/core/args.c
+++ b/src/core/args.c
@@ -21,7 +21,7 @@
 #include "module.h"
 #include "args.h"
 
-GArray *iopt_tables = NULL;
+static GArray *iopt_tables = NULL;
 
 void args_register(struct poptOption *options)
 {
diff --git a/src/core/args.h b/src/core/args.h
index 4d1b82fb..90b2d547 100644
--- a/src/core/args.h
+++ b/src/core/args.h
@@ -7,8 +7,6 @@
 #  include "lib-popt/popt.h"
 #endif
 
-extern GArray *iopt_tables;
-
 void args_register(struct poptOption *options);
 void args_execute(int argc, char *argv[]);