--- a/src/gom_info.h
+++ b/src/gom_info.h
@@ -52,7 +52,7 @@
 enum gom_info_types {GOM_INFO_ERROR=-1, GOM_INFO_QUIET, GOM_INFO_NORMAL, GOM_INFO_VERBOSE, GOM_INFO_DEBUG};
 
 /* shown errors count */
-int gom_info_errors;
+extern int gom_info_errors;
 
 /*
  * FUNCTION PROTOTYPES