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-rw-r--r--libcrystfel/src/image.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/libcrystfel/src/image.c b/libcrystfel/src/image.c
index a5973e4f..d48e4f3b 100644
--- a/libcrystfel/src/image.c
+++ b/libcrystfel/src/image.c
@@ -748,7 +748,11 @@ struct image *image_read(const DataTemplate *dtempl,
}
image->filename = strdup(filename);
- image->ev = strdup(event);
+ if ( event != NULL ) {
+ image->ev = strdup(event);
+ } else {
+ image->ev = strdup("//"); /* Null event */
+ }
/* Load the image data */
if ( !no_image_data ) {