diff --git a/include/gsl/gsl b/include/gsl/gsl
index 2e22c5a..ac5e144 100644
--- a/include/gsl/gsl
+++ b/include/gsl/gsl
@@ -21,7 +21,7 @@
 #include <gsl/assert>      // Ensures/Expects
 #include <gsl/byte>        // byte
 #include <gsl/pointers>    // owner, not_null
-#include <gsl/span>        // multi_span, strided_span...
+#include <gsl/multi_span>  // multi_span, strided_span...
 #include <gsl/span>        // span
 #include <gsl/string_span> // zstring, string_span, zstring_builder...
 #include <gsl/util>        // finally()/narrow_cast()...