diff --git a/srfi/Makefile.am b/srfi/Makefile.am
index 13f9a53ce..a219d7bd6 100644
--- a/srfi/Makefile.am
+++ b/srfi/Makefile.am
@@ -69,6 +69,7 @@ srfi_DATA = srfi-1.scm \
             srfi-17.scm \
             srfi-19.scm \
             srfi-26.scm \
+            srfi-31.scm \
             srfi-34.scm
 
 EXTRA_DIST = $(srfi_DATA)