diff --git a/src/eval.c b/src/eval.c
index 911f0ab..a678d32 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -2296,7 +2296,7 @@
 	int	    orig_flags;
 	long	    result = FALSE;
 	typval_T    var2;
-	int	    error;
+	int	    error = FALSE;
 	int	    vim9script = in_vim9script();
 
 	if (evalarg == NULL)
@@ -2309,18 +2309,12 @@
 	if (evaluate)
 	{
 	    if (vim9script)
-	    {
-		result = tv2bool(rettv);
-	    }
-	    else
-	    {
-		error = FALSE;
-		if (tv_get_number_chk(rettv, &error) != 0)
-		    result = TRUE;
-		clear_tv(rettv);
-		if (error)
-		    return FAIL;
-	    }
+		result = tv_get_bool_chk(rettv, &error);
+	    else if (tv_get_number_chk(rettv, &error) != 0)
+		result = TRUE;
+	    clear_tv(rettv);
+	    if (error)
+		return FAIL;
 	}
 
 	/*
@@ -2362,25 +2356,26 @@
 	    if (evaluate && !result)
 	    {
 		if (vim9script)
+		    result = tv_get_bool_chk(&var2, &error);
+		else if (tv_get_number_chk(&var2, &error) != 0)
+		    result = TRUE;
+		clear_tv(&var2);
+		if (error)
+		    return FAIL;
+	    }
+	    if (evaluate)
+	    {
+		if (vim9script)
 		{
-		    clear_tv(rettv);
-		    *rettv = var2;
-		    result = tv2bool(rettv);
+		    rettv->v_type = VAR_BOOL;
+		    rettv->vval.v_number = result ? VVAL_TRUE : VVAL_FALSE;
 		}
 		else
 		{
-		    if (tv_get_number_chk(&var2, &error) != 0)
-			result = TRUE;
-		    clear_tv(&var2);
-		    if (error)
-			return FAIL;
+		    rettv->v_type = VAR_NUMBER;
+		    rettv->vval.v_number = result;
 		}
 	    }
-	    if (evaluate && !vim9script)
-	    {
-		rettv->v_type = VAR_NUMBER;
-		rettv->vval.v_number = result;
-	    }
 
 	    p = eval_next_non_blank(*arg, evalarg_used, &getnext);
 	}
@@ -2389,9 +2384,6 @@
 	    clear_evalarg(&local_evalarg, NULL);
 	else
 	    evalarg->eval_flags = orig_flags;
-
-	// Resulting value can be assigned to a bool.
-	rettv->v_lock |= VAR_BOOL_OK;
     }
 
     return OK;
@@ -2430,7 +2422,7 @@
 	int	    evaluate;
 	long	    result = TRUE;
 	typval_T    var2;
-	int	    error;
+	int	    error = FALSE;
 	int	    vim9script = in_vim9script();
 
 	if (evalarg == NULL)
@@ -2443,18 +2435,12 @@
 	if (evaluate)
 	{
 	    if (vim9script)
-	    {
-		result = tv2bool(rettv);
-	    }
-	    else
-	    {
-		error = FALSE;
-		if (tv_get_number_chk(rettv, &error) == 0)
-		    result = FALSE;
-		clear_tv(rettv);
-		if (error)
-		    return FAIL;
-	    }
+		result = tv_get_bool_chk(rettv, &error);
+	    else if (tv_get_number_chk(rettv, &error) == 0)
+		result = FALSE;
+	    clear_tv(rettv);
+	    if (error)
+		return FAIL;
 	}
 
 	/*
@@ -2466,7 +2452,7 @@
 		*arg = eval_next_line(evalarg_used);
 	    else
 	    {
-		if (evaluate && in_vim9script() && !VIM_ISWHITE(p[-1]))
+		if (evaluate && vim9script && !VIM_ISWHITE(p[-1]))
 		{
 		    error_white_both(p, 2);
 		    clear_tv(rettv);
@@ -2497,25 +2483,26 @@
 	    if (evaluate && result)
 	    {
 		if (vim9script)
+		    result = tv_get_bool_chk(&var2, &error);
+		else if (tv_get_number_chk(&var2, &error) == 0)
+		    result = FALSE;
+		clear_tv(&var2);
+		if (error)
+		    return FAIL;
+	    }
+	    if (evaluate)
+	    {
+		if (vim9script)
 		{
-		    clear_tv(rettv);
-		    *rettv = var2;
-		    result = tv2bool(rettv);
+		    rettv->v_type = VAR_BOOL;
+		    rettv->vval.v_number = result ? VVAL_TRUE : VVAL_FALSE;
 		}
 		else
 		{
-		    if (tv_get_number_chk(&var2, &error) == 0)
-			result = FALSE;
-		    clear_tv(&var2);
-		    if (error)
-			return FAIL;
+		    rettv->v_type = VAR_NUMBER;
+		    rettv->vval.v_number = result;
 		}
 	    }
-	    if (evaluate && !vim9script)
-	    {
-		rettv->v_type = VAR_NUMBER;
-		rettv->vval.v_number = result;
-	    }
 
 	    p = eval_next_non_blank(*arg, evalarg_used, &getnext);
 	}
@@ -2524,9 +2511,6 @@
 	    clear_evalarg(&local_evalarg, NULL);
 	else
 	    evalarg->eval_flags = orig_flags;
-
-	// Resulting value can be assigned to a bool.
-	rettv->v_lock |= VAR_BOOL_OK;
     }
 
     return OK;