1 files changed, 3 insertions, 1 deletions
diff --git a/src/adjlon.cpp b/src/adjlon.cpp
index 784a90aa..112a9152 100644
--- a/src/adjlon.cpp
+++ b/src/adjlon.cpp
@@ -1,6 +1,8 @@
 /* reduce argument to range +/- PI */
 #include <math.h>
-#include "projects.h"
+
+#include "proj.h"
+#include "proj_internal.h"
 
 double adjlon (double lon) {
     /* Let lon slightly overshoot, to avoid spurious sign switching at the date line */