diff --git a/gstreamer.spec.in b/gstreamer.spec.in
index 2f0f95570d..9966aa219c 100644
--- a/gstreamer.spec.in
+++ b/gstreamer.spec.in
@@ -669,7 +669,7 @@ Library for transfering data with the RTP protocol
 %setup
 
 %build
-CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=%{prefix} --sysconfdir=%{sysconfdir} --mandir=$RPM_BUILD_ROOT/%{prefix}/share/man
+CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=%{prefix} --sysconfdir=%{sysconfdir} --mandir=$RPM_BUILD_ROOT%{prefix}/share/man
 
 if [ "$SMP" != "" ]; then
   (make "MAKE=make -k -j $SMP"; exit 0)