diff --git a/lib/msun/src/w_cabsf.c b/lib/msun/src/w_cabsf.c
index e7bfe220a9a5..b5065c8a5683 100644
--- a/lib/msun/src/w_cabsf.c
+++ b/lib/msun/src/w_cabsf.c
@@ -15,8 +15,7 @@ static const char rcsid[] =
 #include "math_private.h"
 
 float
-cabsf(z)
-	float complex z;
+cabsf(float complex z)
 {
 
 	return hypotf(crealf(z), cimagf(z));
diff --git a/lib/msun/src/w_drem.c b/lib/msun/src/w_drem.c
index 0f6840934fef..74008a5c8099 100644
--- a/lib/msun/src/w_drem.c
+++ b/lib/msun/src/w_drem.c
@@ -8,8 +8,7 @@
 #include <math.h>
 
 double
-drem(x, y)
-	double x, y;
+drem(double x, double y)
 {
 	return remainder(x, y);
 }