diff --git a/libavutil/float_dsp-test.c b/libavutil/float_dsp-test.c
index 2603ee565d..9963efb32c 100644
--- a/libavutil/float_dsp-test.c
+++ b/libavutil/float_dsp-test.c
@@ -16,6 +16,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "config.h"
+
 #include <float.h>
 #include <math.h>
 #include <stdint.h>