diff --git a/avr-libc.changes b/avr-libc.changes
index 689cd00..bab0b64 100644
--- a/avr-libc.changes
+++ b/avr-libc.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Dec 12 12:45:28 UTC 2017 - rguenther@suse.com
+
+- Fix gcc dependences to use %gcc_version.
+
 -------------------------------------------------------------------
 Tue Dec 12 09:12:18 UTC 2017 - kkaempf@suse.com
 
diff --git a/avr-libc.spec b/avr-libc.spec
index 9e49fac..f22ea2c 100644
--- a/avr-libc.spec
+++ b/avr-libc.spec
@@ -47,13 +47,13 @@ Source8:        %{name}.keyring
 Source9:        logicp-1.02.tgz
 Source100:      %{name}-rpmlintrc
 BuildRequires:  cross-avr-binutils
-BuildRequires:  cross-avr-gcc7-bootstrap
+BuildRequires:  cross-avr-gcc%{gcc_version}-bootstrap
 BuildRequires:  doxygen
 BuildRequires:  fdupes
 BuildRequires:  findutils
 BuildRequires:  netpbm
 Requires:       cross-avr-binutils
-Requires:       cross-avr-gcc7
+Requires:       cross-avr-gcc%{gcc_version}
 Recommends:     avr-example
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 # does not depend on host arch. bnc#233520