diff --git a/SOURCES/file-5.39-wasm-magic.patch b/SOURCES/file-5.39-wasm-magic.patch
new file mode 100644
index 0000000..949757b
--- /dev/null
+++ b/SOURCES/file-5.39-wasm-magic.patch
@@ -0,0 +1,23 @@
+From 85b7ab83257b3191a1a7ca044589a092bcef2bb3 Mon Sep 17 00:00:00 2001
+From: Christos Zoulas <christos@zoulas.com>
+Date: Thu, 25 Jun 2020 16:52:48 +0000
+Subject: [PATCH] Include # (alternate format) to the list of uninteresting
+ formats Reported by Werner Fink
+
+---
+ src/funcs.c | 2 ++--
+ 1 file changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/src/funcs.c b/src/funcs.c
+index 299b8f022..ecbfa28c5 100644
+--- a/src/funcs.c
++++ b/src/funcs.c
+@@ -93,7 +93,7 @@ file_checkfmt(char *msg, size_t mlen, const char *fmt)
+ 		if (*++p == '%')
+ 			continue;
+ 		// Skip uninteresting.
+-		while (strchr("0.'+- ", *p) != NULL)
++		while (strchr("#0.'+- ", *p) != NULL)
+ 			p++;
+ 		if (*p == '*') {
+ 			if (msg)
diff --git a/SPECS/file.spec b/SPECS/file.spec
index 23af0e7..0a4a16c 100644
--- a/SPECS/file.spec
+++ b/SPECS/file.spec
@@ -15,7 +15,7 @@
 Summary: Utility for determining file types
 Name: file
 Version: 5.39
-Release: 12%{?dist}
+Release: 12.1%{?dist}
 License: BSD
 Source0: http://ftp.astron.com/pub/file/file-%{version}.tar.gz
 
@@ -53,6 +53,8 @@ Patch12: file-5.39-regex-optimalizations.patch
 Patch13: file-5.39-floating-point-exception.patch
 # Upstream commit 363d7fcf703ad3ebf37b45693b2c9e43eb8b4176 (#2164834)
 Patch14: file-5.39-static-PIE-binaries.patch
+# Upstream commit 85b7ab83257b3191a1a7ca044589a092bcef2bb3 (#2221659)
+Patch15: file-5.39-wasm-magic.patch
 
 URL: https://www.darwinsys.com/file/
 Requires: file-libs%{?_isa} = %{version}-%{release}
@@ -232,6 +234,10 @@ cd %{py3dir}
 %endif
 
 %changelog
+* Mon Jul 03 2023 Vincent Mihalkovic <vmihalko@redhat.com> - 5.39-12.1
+- fix recognition of wasm files
+  Resolves: #2221659
+
 * Wed Mar 15 2023 MSVSphere Packaging Team <packager@msvsphere.ru> - 5.39-10
 - Rebuilt for MSVSphere 9.1.