diff --git a/utils/gmsh-gpl.spec b/utils/gmsh-gpl.spec
index fc496b553e5d6e55870d4dc568b3caaf9d4e0dd5..253075ce070b5752da4ccfe4e06eba406568dee7 100644
--- a/utils/gmsh-gpl.spec
+++ b/utils/gmsh-gpl.spec
@@ -10,6 +10,7 @@ URL: http://www.geuz.org/gmsh/
 Packager: geuz@geuz.org
 Buildroot: /var/tmp/%{name}-buildroot
 Requires: Mesa >= 3.2
+Prefix: /usr
 
 %description 
 Gmsh is an automatic three-dimensional finite element mesh generator,
diff --git a/utils/gmsh.spec b/utils/gmsh.spec
index e8871035a84469ebb9ae37c95898977cbd0bb38e..f16234af38c341930c13902afcadebae9f3956ff 100644
--- a/utils/gmsh.spec
+++ b/utils/gmsh.spec
@@ -10,6 +10,7 @@ URL: http://www.geuz.org/gmsh/
 Packager: geuz@geuz.org
 Buildroot: /var/tmp/%{name}-buildroot
 Requires: Mesa >= 3.2
+Prefix: /usr
 
 %description 
 Gmsh is an automatic three-dimensional finite element mesh generator,