1 files changed, 1 insertions, 0 deletions
diff --git a/src/cell.c b/src/cell.c
index bb4dca99..9ae51f0a 100644
--- a/src/cell.c
+++ b/src/cell.c
@@ -16,6 +16,7 @@
 #include <math.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <gsl/gsl_matrix.h>
 #include <gsl/gsl_blas.h>
 #include <gsl/gsl_linalg.h>