diff --git a/GraphicsMagick.spec b/GraphicsMagick.spec
index 6087977..d06810d 100644
--- a/GraphicsMagick.spec
+++ b/GraphicsMagick.spec
@@ -41,6 +41,7 @@ BuildRequires: libjpeg-devel
 BuildRequires: libpng-devel
 BuildRequires: librsvg2-devel
 BuildRequires: libtiff-devel
+BuildRequires: libtool-ltdl-devel
 BuildRequires: libungif-devel
 BuildRequires: libwmf-devel
 BuildRequires: libxml2-devel