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-rw-r--r--lib/libppmcolor.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/libppmcolor.c b/lib/libppmcolor.c
index 7e324185..58663c94 100644
--- a/lib/libppmcolor.c
+++ b/lib/libppmcolor.c
@@ -598,6 +598,11 @@ readColorFile(const char *    const fileName,
                empty file
             */
             *nColorsP = 0;
+            {
+                unsigned int i;
+                for (i = 0; i < MAXCOLORNAMES; ++i)
+                    colornames[i] = NULL;
+            }
             *errorP = NULL;
         } else {
             readOpenColorFile(colorFileP, nColorsP, colornames, colors, cht,