1 files changed, 3 insertions, 2 deletions
diff --git a/src/PJ_eqc.c b/src/PJ_eqc.c
index 9c80f82f..86845aa3 100644
--- a/src/PJ_eqc.c
+++ b/src/PJ_eqc.c
@@ -1,5 +1,8 @@
 #define PJ_LIB__
+
 #include <errno.h>
+#include <math.h>
+
 #include "proj.h"
 #include "projects.h"
 
@@ -47,5 +50,3 @@ PJ *PROJECTION(eqc) {
 
     return P;
 }
-
-