diff --git a/src/force.cpp b/src/force.cpp
index eceed4297a..a5df8049e0 100644
--- a/src/force.cpp
+++ b/src/force.cpp
@@ -74,7 +74,7 @@ Force::Force(LAMMPS *lmp) : Pointers(lmp)
   kspace_style = new char[n];
   strcpy(kspace_style,str);
 
-  // fill pair map with fixes listed in style_pair.h
+  // fill pair map with pair styles listed in style_pair.h
 
   pair_map = new std::map<std::string,PairCreator>();
 
@@ -103,6 +103,8 @@ Force::~Force()
   if (dihedral) delete dihedral;
   if (improper) delete improper;
   if (kspace) delete kspace;
+
+  delete pair_map;
 }
 
 /* ---------------------------------------------------------------------- */
diff --git a/src/input.cpp b/src/input.cpp
index 67e72db959..0bf588abf5 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -130,6 +130,8 @@ Input::~Input()
   memory->sfree(arg);
   memory->sfree(infiles);
   delete variable;
+
+  delete command_map;
 }
 
 /* ----------------------------------------------------------------------
diff --git a/src/modify.cpp b/src/modify.cpp
index eb5815a7c9..9511a48636 100644
--- a/src/modify.cpp
+++ b/src/modify.cpp
@@ -136,6 +136,9 @@ Modify::~Modify()
   delete [] list_timeflag;
 
   restart_deallocate();
+
+  delete compute_map;
+  delete fix_map;
 }
 
 /* ----------------------------------------------------------------------