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-rw-r--r--progs/demos/texenv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/progs/demos/texenv.c b/progs/demos/texenv.c
index 4c26008136..705cd2621f 100644
--- a/progs/demos/texenv.c
+++ b/progs/demos/texenv.c
@@ -271,7 +271,7 @@ static void keyboard( unsigned char c, int x, int y )
{
switch ( c ) {
case 'c':
- envColor = ++envColor % (int) NUM_ENV_COLORS;
+ envColor = (++envColor) % (int) NUM_ENV_COLORS;
break;
case 'g':
drawBackground = !drawBackground;