diff --git a/f.c b/f.c
index 956e268..ae48485 100644
--- a/f.c
+++ b/f.c
@@ -4,6 +4,6 @@ int
 f(int c, int d)
 {
 	int sum = d+c;
-	printf("explicit data  %d+%d=%d\n", c, d, sum);
+	printf("explicit data %d+%d=%d\n", c, d, sum);
 	return sum;
 }