diff --git a/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSarSensorModel.cpp b/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSarSensorModel.cpp
index e57304fb7751a2ff0e330741cc179a2cb75c81d9..d40795fce678122b026fb1997396711c1e859271 100644
--- a/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSarSensorModel.cpp
+++ b/Modules/ThirdParty/OssimPlugins/src/ossim/ossimSarSensorModel.cpp
@@ -1268,7 +1268,6 @@ bool ossimSarSensorModel::worldToAzimuthRangeTime(const ossimGpt& worldPt, TimeT
       for (std::size_t idx=0 ; idx!=nbCoords ; ++idx)
       {
          const int pos = s_printf(prefix_, "%s[%d].", sr_gr_prefix.c_str(), idx);
-         assert(pos >= sizeof(SR_PREFIX)+4 && pos < sizeof(prefix_));
          std::string prefix(prefix_, pos);
 
          ossimSarSensorModel::CoordinateConversionRecordType coordRecord;
@@ -1301,7 +1300,6 @@ bool ossimSarSensorModel::worldToAzimuthRangeTime(const ossimGpt& worldPt, TimeT
      for (std::size_t idx=0 ; idx!=conversionRecords.size() ; ++idx)
        {
        const int pos = s_printf(prefix_, "%s[%d].", sr_gr_prefix.c_str(), idx);
-       assert(pos >= sizeof(SR_PREFIX)+4 && pos < sizeof(prefix_));
        std::string prefix(prefix_, pos);