diff --git a/src/potential_file_reader.cpp b/src/potential_file_reader.cpp
index 379a2ba2fc..da5b254309 100644
--- a/src/potential_file_reader.cpp
+++ b/src/potential_file_reader.cpp
@@ -30,7 +30,7 @@ using namespace LAMMPS_NS;
 
 PotentialFileReader::PotentialFileReader(LAMMPS *lmp,
                                          const std::string &filename,
-                                         const std::string &potential_name) : 
+                                         const std::string &potential_name) :
   Pointers(lmp),
   reader(nullptr),
   filename(filename),
diff --git a/src/table_file_reader.cpp b/src/table_file_reader.cpp
index ca49eff1f7..194db8f8eb 100644
--- a/src/table_file_reader.cpp
+++ b/src/table_file_reader.cpp
@@ -28,7 +28,7 @@ using namespace LAMMPS_NS;
 
 TableFileReader::TableFileReader(LAMMPS *lmp,
                                          const std::string &filename,
-                                         const std::string &type) : 
+                                         const std::string &type) :
   PotentialFileReader(lmp, filename, type + " table")
 {
 }
diff --git a/src/text_file_reader.cpp b/src/text_file_reader.cpp
index b0cf7d2f4d..c5913d8c51 100644
--- a/src/text_file_reader.cpp
+++ b/src/text_file_reader.cpp
@@ -28,7 +28,7 @@
 
 using namespace LAMMPS_NS;
 
-TextFileReader::TextFileReader(const std::string &filename, const std::string &filetype) 
+TextFileReader::TextFileReader(const std::string &filename, const std::string &filetype)
   : filename(filename), filetype(filetype)
 {
   fp = fopen(filename.c_str(), "r");
diff --git a/src/text_file_reader.h b/src/text_file_reader.h
index 4e31e95a67..79ced00259 100644
--- a/src/text_file_reader.h
+++ b/src/text_file_reader.h
@@ -33,7 +33,7 @@ namespace LAMMPS_NS
 
   public:
     bool ignore_comments;
-    
+
     TextFileReader(const std::string &filename, const std::string &filetype);
     ~TextFileReader();
 
@@ -48,10 +48,10 @@ namespace LAMMPS_NS
   public:
     FileReaderException(const std::string & msg) : message(msg) {
     }
-  
+
     ~FileReaderException() throw() {
     }
-  
+
     virtual const char * what() const throw() {
       return message.c_str();
     }