diff --git a/src/ieee754.h b/src/ieee754.h
index 47bfea5..72444f1 100644
--- a/src/ieee754.h
+++ b/src/ieee754.h
@@ -103,7 +103,7 @@
  floating-point HW or compiler-supplied SW.
  This is a loss-less conversion.
  */
-double IEEE754_FloatToDouble(float f);
+double IEEE754_FloatToDouble(uint32_t ufloat);
 
 
 // Both tags the value and gives the size