diff --git a/flow/gsl/gslcommon.c b/flow/gsl/gslcommon.c
index 6c8a692..b026e8e 100644
--- a/flow/gsl/gslcommon.c
+++ b/flow/gsl/gslcommon.c
@@ -22,7 +22,7 @@
 #include <string.h>
 #include <sched.h>
 #include <errno.h>
-#include <sys/poll.h>
+#include <poll.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 
diff --git a/flow/gsl/gslopmaster.c b/flow/gsl/gslopmaster.c
index 71940d6..fe198ac 100644
--- a/flow/gsl/gslopmaster.c
+++ b/flow/gsl/gslopmaster.c
@@ -17,7 +17,7 @@
  * Boston, MA 02110-1301, USA.
  */
 #include <string.h>
-#include <sys/poll.h>
+#include <poll.h>
 #include <sys/time.h>
 #include <errno.h>