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-rw-r--r--libs/pbd/enumwriter.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libs/pbd/enumwriter.cc b/libs/pbd/enumwriter.cc
index 0cfe42a0c3..243cd1c6ab 100644
--- a/libs/pbd/enumwriter.cc
+++ b/libs/pbd/enumwriter.cc
@@ -19,6 +19,7 @@
*/
#include <cctype>
+#include <algorithm>
#include <cstring>
#include <cstdlib>