diff --git a/gnupg/gnupg.spec b/gnupg/gnupg.spec
index 40476e9966..bbe872cd44 100644
--- a/gnupg/gnupg.spec
+++ b/gnupg/gnupg.spec
@@ -72,7 +72,7 @@ Provides:     openpgp
 
 %install
     rm -rf $RPM_BUILD_ROOT
-    %{l_make} %{l_mflags} install DESTDIR=$RPM_BUILD_ROOT
+    %{l_make} %{l_mflags} install AM_MAKEFLAGS="DESTDIR=$RPM_BUILD_ROOT"
     strip $RPM_BUILD_ROOT%{l_prefix}/bin/* 2> /dev/null || true
     %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT \
         %{l_files_std} \