diff --git a/include/empobj.h b/include/empobj.h
index 408da5f0..a7b2e947 100644
--- a/include/empobj.h
+++ b/include/empobj.h
@@ -89,6 +89,6 @@ extern struct empobj *get_empobjp(int type, int id);
 extern int put_empobj(struct empobj *gp);
 extern void *get_empobj_chr(struct empobj *gp);
 extern char *emp_obj_chr_name(struct empobj *gp);
-extern int get_empobj_mob_max(int ef_type);
+extern int get_empobj_mob_max(int type);
 
 #endif
diff --git a/src/lib/common/empobj.c b/src/lib/common/empobj.c
index 64740efb..63a43331 100644
--- a/src/lib/common/empobj.c
+++ b/src/lib/common/empobj.c
@@ -132,9 +132,9 @@ emp_obj_chr_name(struct empobj *gp)
 }
 
 int
-get_empobj_mob_max(int ef_type)
+get_empobj_mob_max(int type)
 {
-    switch (ef_type) {
+    switch (type) {
     case EF_SHIP:
 	return ship_mob_max;
     case EF_LAND: