diff --git a/libgtkmm2.spec b/libgtkmm2.spec
index 55011fb..79c6a62 100644
--- a/libgtkmm2.spec
+++ b/libgtkmm2.spec
@@ -2,7 +2,7 @@
 
 Name:          libgtkmm2
 Version:       2.24.5
-Release:       1mamba
+Release:       2mamba
 Summary:       gtkmm is the official C++ interface for the popular GUI library GTK+
 Group:         System/Libraries
 Vendor:        openmamba
@@ -63,10 +63,10 @@ This package contains static libraries and header files need for development.
 %prep
 %setup -q -n gtkmm-%{version}
 
+%build
 %configure
 %make CXXFLAGS="${CXXFLAGS} -std=gnu++11"
 
-
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall
@@ -98,6 +98,9 @@ This package contains static libraries and header files need for development.
 %{_libdir}/pkgconfig/gtkmm-*.pc
 
 %changelog
+* Fri Nov 01 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 2.24.5-2mamba
+- rebuild to update libtool archives
+
 * Sun Oct 22 2017 Automatic Build System <autodist@mambasoft.it> 2.24.5-1mamba
 - automatic update by autodist