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-rw-r--r--src/pattern_sim.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/pattern_sim.c b/src/pattern_sim.c
index f724057e..262e3976 100644
--- a/src/pattern_sim.c
+++ b/src/pattern_sim.c
@@ -696,6 +696,9 @@ int main(int argc, char *argv[])
powder.width = image.width;
powder.height = image.height;
powder.det = image.det;
+ powder.beam = NULL;
+ powder.lambda = 0.0;
+ powder.spectrum = NULL;
powder.dp = malloc(image.det->n_panels*sizeof(float *));
if ( powder.dp == NULL ) {
ERROR("Failed to allocate powder data\n");