diff --git a/contrib/crossrpms/binutils/rpm-install.add b/contrib/crossrpms/binutils/rpm-install.add
index 4745182408..dd436a6fbd 100644
--- a/contrib/crossrpms/binutils/rpm-install.add
+++ b/contrib/crossrpms/binutils/rpm-install.add
@@ -16,7 +16,7 @@ case $a in
 # Fix up brp-compress to handle %%_prefix != /usr
 */brp-compress*)
   b=$(basename $a)
-  sed -e 's,\./usr/,./%{_prefix},' < $a > $b
+  sed -e 's,\./usr/,.%{_prefix}/,' < $a > $b
   chmod a+x $b
   ;;
 %endif
diff --git a/contrib/crossrpms/gcc/rpm-install.add b/contrib/crossrpms/gcc/rpm-install.add
index 69e90c4608..275632c181 100644
--- a/contrib/crossrpms/gcc/rpm-install.add
+++ b/contrib/crossrpms/gcc/rpm-install.add
@@ -16,7 +16,7 @@ case $a in
 # Fix up brp-compress to handle %%_prefix != /usr
 */brp-compress*)
   b=$(basename $a)
-  sed -e 's,\./usr/,./%{_prefix},' < $a > $b
+  sed -e 's,\./usr/,.%{_prefix}/,' < $a > $b
   chmod a+x $b
   ;;
 %endif