diff --git a/coders/ipl.c b/coders/ipl.c
index 2452295..a0789fe 100644
--- a/coders/ipl.c
+++ b/coders/ipl.c
@@ -84,7 +84,7 @@
static MagickBooleanType
WriteIPLImage(const ImageInfo *,Image *,ExceptionInfo *);
-void increase (void *pixel, int byteType){
+static void increase (void *pixel, int byteType){
switch(byteType){
case 0:(*((unsigned char *) pixel))++; break;
case 1:(*((signed int *) pixel))++; break;
@@ -161,7 +161,7 @@
%
*/
-void SetHeaderFromIPL(Image *image, IPLInfo *ipl){
+static void SetHeaderFromIPL(Image *image, IPLInfo *ipl){
image->columns = ipl->width;
image->rows = ipl->height;
image->depth = ipl->depth;
diff --git a/coders/wpg.c b/coders/wpg.c
index 31c08de..bacb379 100644
--- a/coders/wpg.c
+++ b/coders/wpg.c
@@ -73,7 +73,7 @@
} RGB_Record;
/* Default palette for WPG level 1 */
-const RGB_Record WPG1_Palette[256]={
+static const RGB_Record WPG1_Palette[256]={
{ 0, 0, 0}, { 0, 0,168},
{ 0,168, 0}, { 0,168,168},
{168, 0, 0}, {168, 0,168},