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-rw-r--r--src/transformations/helmert.cpp1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/transformations/helmert.cpp b/src/transformations/helmert.cpp
index c00fad2f..63785ea5 100644
--- a/src/transformations/helmert.cpp
+++ b/src/transformations/helmert.cpp
@@ -53,7 +53,6 @@ Last update: 2018-10-26
#include <math.h>
#include "proj_internal.h"
-#include "proj_internal.h"
#include "geocent.h"
PROJ_HEAD(helmert, "3(6)-, 4(8)- and 7(14)-parameter Helmert shift");