diff --git a/src/DriverUNV/DriverUNV_R_SMDS_Mesh.cxx b/src/DriverUNV/DriverUNV_R_SMDS_Mesh.cxx
index b8c5d5c5c..c88a9128a 100644
--- a/src/DriverUNV/DriverUNV_R_SMDS_Mesh.cxx
+++ b/src/DriverUNV/DriverUNV_R_SMDS_Mesh.cxx
@@ -282,7 +282,7 @@ Driver_Mesh::Status DriverUNV_R_SMDS_Mesh::Perform()
 	    SMDS_MeshGroup* aNodesGroup = (SMDS_MeshGroup*) myGroup->AddSubGroup(SMDSAbs_Node);
 	    std::string aGrName = (useSuffix) ? aRec.GroupName + "_Nodes" : aRec.GroupName;
 	    int i = aGrName.find( "\r" );
-	    if (i)
+	    if (i > 0)
 	      aGrName.erase (i, 2);
 	    myGroupNames.insert(TGroupNamesMap::value_type(aNodesGroup, aGrName));
 	    myGroupId.insert(TGroupIdMap::value_type(aNodesGroup, aLabel));
@@ -309,7 +309,7 @@ Driver_Mesh::Status DriverUNV_R_SMDS_Mesh::Perform()
 		    if (!useSuffix && createdGroup) useSuffix = true;
 		    std::string aEdgesGrName = (useSuffix) ? aRec.GroupName + "_Edges" : aRec.GroupName;
 		    int i = aEdgesGrName.find( "\r" );
-		    if (i)
+		    if (i > 0)
 		      aEdgesGrName.erase (i, 2);
 		    myGroupNames.insert(TGroupNamesMap::value_type(aEdgesGroup, aEdgesGrName));
 		    myGroupId.insert(TGroupIdMap::value_type(aEdgesGroup, aLabel));
@@ -323,7 +323,7 @@ Driver_Mesh::Status DriverUNV_R_SMDS_Mesh::Perform()
 		    if (!useSuffix && createdGroup) useSuffix = true;
 		    std::string aFacesGrName = (useSuffix) ? aRec.GroupName + "_Faces" : aRec.GroupName;
 		    int i = aFacesGrName.find( "\r" );
-		    if (i)
+		    if (i > 0)
 		      aFacesGrName.erase (i, 2);
 		    myGroupNames.insert(TGroupNamesMap::value_type(aFacesGroup, aFacesGrName));
 		    myGroupId.insert(TGroupIdMap::value_type(aFacesGroup, aLabel));
@@ -337,7 +337,7 @@ Driver_Mesh::Status DriverUNV_R_SMDS_Mesh::Perform()
 		    if (!useSuffix && createdGroup) useSuffix = true;
 		    std::string aVolumeGrName = (useSuffix) ? aRec.GroupName + "_Volumes" : aRec.GroupName;
 		    int i = aVolumeGrName.find( "\r" );
-		    if (i)
+		    if (i > 0)
 		      aVolumeGrName.erase (i, 2);
 		    myGroupNames.insert(TGroupNamesMap::value_type(aVolumeGroup, aVolumeGrName));
 		    myGroupId.insert(TGroupIdMap::value_type(aVolumeGroup, aLabel));