diff --git a/missing/nan.c b/missing/nan.c
index 507cc586d2..686c48a336 100644
--- a/missing/nan.c
+++ b/missing/nan.c
@@ -11,18 +11,18 @@ nan(const char *spec)
      * necessary. Please write a proper implementation that
      * covers this branch.  */
     if (spec && spec[0]) {
-        double generated_nan;
+	double generated_nan;
 	int len = snprintf(NULL, 0, "NAN(%s)", spec);
 	char *buf = malloc(len + 1); /* +1 for NUL */
 	sprintf(buf, "NAN(%s)", spec);
 	generated_nan = strtod(buf, NULL);
 	free(buf);
-        return generated_nan;
+	return generated_nan;
     }
     else
 #endif
     {
-        assert(!spec || !spec[0]);
-        return (double)NAN;
+	assert(!spec || !spec[0]);
+	return (double)NAN;
     }
 }