ParMGridGen/ParLib/move.c          | 1 +
 ParMGridGen/ParLib/parmgridgen.c   | 1 +
 ParMGridGen/ParLib/util.c          | 2 +-
 ParMGridGen/Programs/io.c          | 2 +-
 ParMGridGen/Programs/parmgridgen.c | 2 +-
 5 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/ParMGridGen/ParLib/move.c b/ParMGridGen/ParLib/move.c
index 881b1ad..b02b467 100644
--- a/ParMGridGen/ParLib/move.c
+++ b/ParMGridGen/ParLib/move.c
@@ -9,6 +9,7 @@
  */
 
 #include "parmgridgen.h"
+#include "IMlib.h"
 
 /*************************************************************************
 * This function moves the graph, and returns a new graph.
diff --git a/ParMGridGen/ParLib/parmgridgen.c b/ParMGridGen/ParLib/parmgridgen.c
index 6fd4aa3..262e05c 100644
--- a/ParMGridGen/ParLib/parmgridgen.c
+++ b/ParMGridGen/ParLib/parmgridgen.c
@@ -9,6 +9,7 @@
  */
 
 #include "parmgridgen.h"
+#include "IMlib.h"
 
 /***********************************************************************************
 * This function is the entry point of the parallel coarse grid construction.
diff --git a/ParMGridGen/ParLib/util.c b/ParMGridGen/ParLib/util.c
index 9b8290d..fa2e10a 100644
--- a/ParMGridGen/ParLib/util.c
+++ b/ParMGridGen/ParLib/util.c
@@ -9,7 +9,7 @@
  */
 
 #include "parmgridgen.h"
-
+#include "IMlib.h"
 
 /*************************************************************************
 * This function prints an error message and exits
diff --git a/ParMGridGen/Programs/io.c b/ParMGridGen/Programs/io.c
index 318c8b4..ed5d495 100644
--- a/ParMGridGen/Programs/io.c
+++ b/ParMGridGen/Programs/io.c
@@ -9,7 +9,7 @@
  */
 
 #include "parmgridgen.h"
-
+#include "IMlib.h"
 
 /*************************************************************************
 * This function reads the CSR matrix
diff --git a/ParMGridGen/Programs/parmgridgen.c b/ParMGridGen/Programs/parmgridgen.c
index 2c0d38c..e9956c5 100644
--- a/ParMGridGen/Programs/parmgridgen.c
+++ b/ParMGridGen/Programs/parmgridgen.c
@@ -9,7 +9,7 @@
  */
 
 #include "parmgridgen.h"
-
+#include "IMlib.h"
 
 /***********************************************************************************
 * This function is the testing routine for the adaptive multilevel partitioning code.