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-rw-r--r--src/FanFlatBeamLineKernelProjector2D.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/FanFlatBeamLineKernelProjector2D.cpp b/src/FanFlatBeamLineKernelProjector2D.cpp
index fd4195b..343144d 100644
--- a/src/FanFlatBeamLineKernelProjector2D.cpp
+++ b/src/FanFlatBeamLineKernelProjector2D.cpp
@@ -30,6 +30,7 @@ $Id$
#include <cmath>
#include <cstring>
+#include <algorithm>
#include "astra/DataProjectorPolicies.h"