diff --git a/C/exec.c b/C/exec.c
index ac512ce5a..e0f23c322 100644
--- a/C/exec.c
+++ b/C/exec.c
@@ -284,7 +284,7 @@ do_execute(Term t, SMALLUNSGN mod)
 	ENV = YENV;
 	ASP -= EnvSizeInCells+3;
 	P = NEXTOP(COMMA_CODE,sla);
-	t = ArgOfTerm(1,t);
+	ARG1 = t = ArgOfTerm(1,t);
 	goto restart_exec;
     } else if (mod != CurrentModule) {
       return(CallMetaCall(mod));
diff --git a/docs/yap.tex b/docs/yap.tex
index c5c883856..ffe5e193f 100644
--- a/docs/yap.tex
+++ b/docs/yap.tex
@@ -4757,7 +4757,7 @@ and @var{I} is bound to its position.
 
 @end table
 
-The following predicate can only be used for dynamic predicates:
+The following predicates can only be used for dynamic predicates:
 
 @table @code