diff --git a/CondFormats/SiPixelObjects/src/SiPixelVCal.cc b/CondFormats/SiPixelObjects/src/SiPixelVCal.cc
index a40fa5f4985af..da083bd629a84 100644
--- a/CondFormats/SiPixelObjects/src/SiPixelVCal.cc
+++ b/CondFormats/SiPixelObjects/src/SiPixelVCal.cc
@@ -1,6 +1,8 @@
 #include "CondFormats/SiPixelObjects/interface/SiPixelVCal.h"
 #include "FWCore/MessageLogger/interface/MessageLogger.h"
 
+#include <algorithm>
+
 bool SiPixelVCal::putSlopeAndOffset(const uint32_t& pixid, float& slopeValue, float& offsetValue) {
   std::map<unsigned int, VCal>::const_iterator id = m_vcal.find(pixid);
   if (id != m_vcal.end()) {
diff --git a/Geometry/HcalCommonData/src/HcalDDDRecConstants.cc b/Geometry/HcalCommonData/src/HcalDDDRecConstants.cc
index 5f3abf37f5ea1..aacc352ce8d51 100644
--- a/Geometry/HcalCommonData/src/HcalDDDRecConstants.cc
+++ b/Geometry/HcalCommonData/src/HcalDDDRecConstants.cc
@@ -5,6 +5,7 @@
 #include "DataFormats/Math/interface/GeantUnits.h"
 #include "CLHEP/Units/GlobalPhysicalConstants.h"
 #include "CLHEP/Units/GlobalSystemOfUnits.h"
+#include <algorithm>
 #include <cmath>
 
 //#define EDM_ML_DEBUG
diff --git a/L1Trigger/L1TMuonOverlap/src/GhostBuster.cc b/L1Trigger/L1TMuonOverlap/src/GhostBuster.cc
index 3558a6790bdfa..a1d1946c37569 100644
--- a/L1Trigger/L1TMuonOverlap/src/GhostBuster.cc
+++ b/L1Trigger/L1TMuonOverlap/src/GhostBuster.cc
@@ -1,5 +1,6 @@
 #include "L1Trigger/L1TMuonOverlap/interface/GhostBuster.h"
 
+#include <algorithm>
 #include <sstream>
 
 #include "FWCore/MessageLogger/interface/MessageLogger.h"
diff --git a/L1Trigger/L1TMuonOverlap/src/GhostBusterPreferRefDt.cc b/L1Trigger/L1TMuonOverlap/src/GhostBusterPreferRefDt.cc
index 177aaa58a49ee..c1ccba0558c0a 100644
--- a/L1Trigger/L1TMuonOverlap/src/GhostBusterPreferRefDt.cc
+++ b/L1Trigger/L1TMuonOverlap/src/GhostBusterPreferRefDt.cc
@@ -1,5 +1,6 @@
 #include "L1Trigger/L1TMuonOverlap/interface/GhostBusterPreferRefDt.h"
 
+#include <algorithm>
 #include <sstream>
 
 #include "FWCore/MessageLogger/interface/MessageLogger.h"