diff --git a/libr/lang/p/v.c b/libr/lang/p/v.c
index c633307399..ecbcfc0c3e 100644
--- a/libr/lang/p/v.c
+++ b/libr/lang/p/v.c
@@ -26,9 +26,12 @@ static const char *r2v_body = \
 	"pub fn (core &R2)cmd(s string) string {\n"
 	"  unsafe {\n"
 	"    o := C.r_core_cmd_str (core, s.str)\n"
-	"    strs := o.vstring()\n"
-	"    // free(o)\n"
-	"    return strs\n"
+	"    if o != 0 {\n"
+	"      strs := o.vstring()\n"
+	"      free(o)\n"
+	"      return strs\n"
+	"    }\n"
+	"    return ''\n"
 	"  }\n"
 	"}\n"
 	"\n"