diff --git a/src/snapshot.cpp b/src/snapshot.cpp
index 29623af89faa84ba2bb88f8df10c7ff3befd7e8e..283cd3c593aa8dfe091212d6171beb658a378b30 100644
--- a/src/snapshot.cpp
+++ b/src/snapshot.cpp
@@ -37,7 +37,7 @@ void Snapshot::computeRanges(const Azels& azel,
                              const Eigen::Vector3d& latlonalt,
                              const Options& opt)
 {
-    assert(!rangesComputed() && "pseudo ranges already computed!");
+    //assert(!rangesComputed() && "pseudo ranges already computed!");
 
     ranges_ = Range::computeRanges(obs_, nav_, sats_, azel, latlonalt, opt);
 }