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-rw-r--r--libqpdf/Pl_PNGFilter.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libqpdf/Pl_PNGFilter.cc b/libqpdf/Pl_PNGFilter.cc
index a0841944..5f2ae54d 100644
--- a/libqpdf/Pl_PNGFilter.cc
+++ b/libqpdf/Pl_PNGFilter.cc
@@ -1,4 +1,5 @@
#include <qpdf/Pl_PNGFilter.hh>
+
#include <qpdf/QTC.hh>
#include <stdexcept>
#include <string.h>