diff --git a/src/os/src/detail/osTime.c b/src/os/src/detail/osTime.c
index ab3f3668c57f24e167dd102ec887b5045fb2c5a6..034ebc28fc51a23893b6cefb9792359c832cd8b0 100644
--- a/src/os/src/detail/osTime.c
+++ b/src/os/src/detail/osTime.c
@@ -374,8 +374,10 @@ int64_t convertTimePrecision(int64_t time, int32_t fromPrecision, int32_t toPrec
           return time;
       }
     } //end from nano
-    default:
+    default: {
       assert(0);
+      return time;  // only to pass windows compilation
+    }
   } //end switch fromPrecision
 }