1 files changed, 2 insertions, 2 deletions
diff --git a/src/rgb.c b/src/rgb.c
index 729898d..5c350eb 100644
--- a/src/rgb.c
+++ b/src/rgb.c
@@ -57,7 +57,7 @@
  */
 int
 xpmReadRgbNames(
-    char	*rgb_fname,
+    const char	*rgb_fname,
     xpmRgbName	 rgbn[])
 {
     FILE *rgbf;
@@ -162,7 +162,7 @@ xpmFreeRgbNames(
 
 int
 xpmReadRgbNames(
-    char	*rgb_fname,
+    const char	*rgb_fname,
     xpmRgbName	 rgbn[])
 {
     /*