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-rw-r--r--src/extension/internal/pdfinput/pdf-input.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/extension/internal/pdfinput/pdf-input.h b/src/extension/internal/pdfinput/pdf-input.h
index 3710e4667..f22a783ff 100644
--- a/src/extension/internal/pdfinput/pdf-input.h
+++ b/src/extension/internal/pdfinput/pdf-input.h
@@ -16,6 +16,10 @@
#ifdef HAVE_POPPLER
+#if GLIBMM_DISABLE_DEPRECATED && HAVE_GLIBMM_THREADS_H
+#include <glibmm/threads.h>
+#endif
+
#include <gtkmm/dialog.h>
#include "../../implementation/implementation.h"