diff --git a/src/ivfflat.h b/src/ivfflat.h
index ab2776f..8dba5ef 100644
--- a/src/ivfflat.h
+++ b/src/ivfflat.h
@@ -11,7 +11,7 @@
 #include "access/parallel.h"
 #include "access/reloptions.h"
 #include "nodes/execnodes.h"
-#include "port.h"				/* for strtof() and random() */
+#include "port.h"				/* for random() */
 #include "utils/sampling.h"
 #include "utils/tuplesort.h"
 #include "vector.h"
diff --git a/src/vector.c b/src/vector.c
index e76d43f..ac574e5 100644
--- a/src/vector.c
+++ b/src/vector.c
@@ -6,6 +6,7 @@
 #include "vector.h"
 
 #include "fmgr.h"
+#include "port.h"				/* for strtof() */
 #include "catalog/pg_type.h"
 #include "lib/stringinfo.h"
 #include "libpq/pqformat.h"