diff --git a/apps/speed.c b/apps/speed.c
index 7a69485..00c7c41 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -2283,7 +2283,7 @@
     int *fds;
     static char sep[] = ":";
 
-    fds = malloc(multi * sizeof *fds);
+    fds = malloc(sizeof(*fds) * multi);
     for (n = 0; n < multi; ++n) {
         if (pipe(fd) == -1) {
             fprintf(stderr, "pipe failure\n");