diff --git a/src/evalfunc.c b/src/evalfunc.c
index 3207441..e89bc30 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -6874,7 +6874,7 @@
 	return;
 
 #ifdef FEAT_LIBCALL
-    /* The first two args must be strings, otherwise its meaningless */
+    /* The first two args must be strings, otherwise it's meaningless */
     if (argvars[0].v_type == VAR_STRING && argvars[1].v_type == VAR_STRING)
     {
 	string_in = NULL;