diff --git a/.rust2rpm.conf b/.rust2rpm.conf
new file mode 100644
index 0000000..72ad43c
--- /dev/null
+++ b/.rust2rpm.conf
@@ -0,0 +1,4 @@
+[DEFAULT]
+unwanted-features =
+  asm
+  md5-asm
diff --git a/rust-md-5.spec b/rust-md-5.spec
index 0bdbb87..61ffa3a 100644
--- a/rust-md-5.spec
+++ b/rust-md-5.spec
@@ -1,4 +1,4 @@
-# Generated by rust2rpm 15
+# Generated by rust2rpm 16
 %bcond_without check
 %global debug_package %{nil}
 
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.9.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        MD5 hash function
 
 # Upstream license specification: MIT OR Apache-2.0
@@ -52,30 +52,6 @@ which use "default" feature of "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
-%package     -n %{name}+asm-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+asm-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "asm" feature of "%{crate}" crate.
-
-%files       -n %{name}+asm-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
-
-%package     -n %{name}+md5-asm-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+md5-asm-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "md5-asm" feature of "%{crate}" crate.
-
-%files       -n %{name}+md5-asm-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
-
 %package     -n %{name}+std-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -107,6 +83,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sat Dec 12 2020 Fabio Valentini <decathorpe@gmail.com> - 0.9.1-3
+- Remove features with missing dependencies (md5-asm).
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild