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-rw-r--r--tests/pr_gradient_check.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/pr_gradient_check.c b/tests/pr_gradient_check.c
index 18d8e58a..6ebe28bb 100644
--- a/tests/pr_gradient_check.c
+++ b/tests/pr_gradient_check.c
@@ -214,7 +214,7 @@ static int test_gradients(struct image *image, double incr_val, int refine,
int main(int argc, char *argv[])
{
struct image image;
- const double incr_frac = 1.0/1000.0;
+ const double incr_frac = 1.0/1000000.0;
double incr_val;
double ax, ay, az;
double bx, by, bz;