diff --git a/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentHarvester.cc b/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentHarvester.cc
index 2418dd15b9dae..bf5c86809019c 100644
--- a/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentHarvester.cc
+++ b/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentHarvester.cc
@@ -33,6 +33,7 @@
 #include <iomanip>
 #include <cmath>
 #include <utility>
+#include <algorithm>
 
 #include "TH1D.h"
 #include "TH2D.h"
@@ -386,6 +387,7 @@ std::unique_ptr<TGraphErrors> PPSAlignmentHarvester::buildGraphFromMonitorElemen
       std::string parentPath = me->getPathname();
       size_t parentPos = parentPath.substr(0, parentPath.size() - 1).find_last_of('/') + 1;
       std::string parentName = parentPath.substr(parentPos);
+      std::replace(parentName.begin(), parentName.end(), '_', '.');  // replace _ with .
       size_t d = parentName.find('-');
       const double x_min = std::stod(parentName.substr(0, d));
       const double x_max = std::stod(parentName.substr(d + 1));
@@ -581,7 +583,7 @@ void PPSAlignmentHarvester::xAlignment(DQMStore::IBooker& iBooker,
                                    std::make_pair(cfg.sectorConfig56(), cfg_ref.sectorConfig56())}) {
     for (const auto& [rpc, rpc_ref] :
          {std::make_pair(sc.rp_F_, sc_ref.rp_F_), std::make_pair(sc.rp_N_, sc_ref.rp_N_)}) {
-      auto mes_test = iGetter.getAllContents(dqmDir_ + "/worker/" + sc.name_ + "/near_far/x slices, " + rpc.position_);
+      auto mes_test = iGetter.getAllContents(dqmDir_ + "/worker/" + sc.name_ + "/near_far/x slices " + rpc.position_);
       if (mes_test.empty()) {
         edm::LogWarning("PPSAlignmentHarvester") << "[x_alignment] " << rpc.name_ << ": could not load mes_test";
         continue;
diff --git a/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentWorker.cc b/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentWorker.cc
index 83707fd1552c1..cf94caef6ea36 100644
--- a/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentWorker.cc
+++ b/CalibPPS/AlignmentGlobal/plugins/PPSAlignmentWorker.cc
@@ -273,8 +273,8 @@ void PPSAlignmentWorker::SectorData::init(DQMStore::IBooker& iBooker,
 
     char buf[100];
     sprintf(buf, "%.1f-%.1f", x_min, x_max);
-
-    iBooker.setCurrentFolder(rootDir + "/" + scfg_.name_ + "/near_far/x slices, N/" + buf);
+    std::replace(buf, buf + strlen(buf), '.', '_');  // replace . with _
+    iBooker.setCurrentFolder(rootDir + "/" + scfg_.name_ + "/near_far/x slices N/" + buf);
     x_slice_plots_N.insert({i, SlicePlots(iBooker, cfg, debug)});
   }
 
@@ -284,8 +284,8 @@ void PPSAlignmentWorker::SectorData::init(DQMStore::IBooker& iBooker,
 
     char buf[100];
     sprintf(buf, "%.1f-%.1f", x_min, x_max);
-
-    iBooker.setCurrentFolder(rootDir + "/" + scfg_.name_ + "/near_far/x slices, F/" + buf);
+    std::replace(buf, buf + strlen(buf), '.', '_');  // replace . with _
+    iBooker.setCurrentFolder(rootDir + "/" + scfg_.name_ + "/near_far/x slices F/" + buf);
     x_slice_plots_F.insert({i, SlicePlots(iBooker, cfg, debug)});
   }
 }
diff --git a/CalibPPS/ESProducers/plugins/PPSAlignmentConfigurationESSource.cc b/CalibPPS/ESProducers/plugins/PPSAlignmentConfigurationESSource.cc
index dc83047627e28..f81bf34ff1f2f 100644
--- a/CalibPPS/ESProducers/plugins/PPSAlignmentConfigurationESSource.cc
+++ b/CalibPPS/ESProducers/plugins/PPSAlignmentConfigurationESSource.cc
@@ -25,6 +25,7 @@
 #include <map>
 #include <memory>
 #include <queue>
+#include <algorithm>
 
 #include "TF1.h"
 #include "TProfile.h"
@@ -213,7 +214,7 @@ PPSAlignmentConfigurationESSource::PPSAlignmentConfigurationESSource(const edm::
             gDirectory = debugFile->mkdir(rpConfigs[p.first]->name_.c_str())->mkdir("fits_ref");
 
           auto* d_ref = (TDirectory*)ad_ref->Get(
-              (sectorNames[p.first] + "/near_far/x slices, " + rpConfigs[p.first]->position_).c_str());
+              (sectorNames[p.first] + "/near_far/x slices " + rpConfigs[p.first]->position_).c_str());
           if (d_ref == nullptr) {
             edm::LogWarning("PPS") << "[ESSource] could not load d_ref";
           } else {
@@ -627,6 +628,7 @@ std::vector<PPSAlignmentConfiguration::PointErrors> PPSAlignmentConfigurationESS
 
     std::string name = k->GetName();
     size_t d = name.find('-');
+    std::replace(name.begin(), name.end(), '_', '.');  // replace _ with .
     const double x_min = std::stod(name.substr(0, d));
     const double x_max = std::stod(name.substr(d + 1));