1 files changed, 2 insertions, 0 deletions

diff --git a/double.h b/double.h
index 9a26970..606c8af 100644
--- a/double.h
+++ b/double.h
@@ -1,3 +1,5 @@
+#include <stdbool.h>
+
 double int_to_valuetype(int);
 
 double int_to_exptype(double);