diff -up gtk3-nocsd-3/gtk3-nocsd.in.multilib gtk3-nocsd-3/gtk3-nocsd.in
--- gtk3-nocsd-3/gtk3-nocsd.in.multilib	2017-02-19 10:23:41.771000847 -0300
+++ gtk3-nocsd-3/gtk3-nocsd.in	2017-02-19 10:24:37.730157463 -0300
@@ -41,10 +41,9 @@ if [ $IN_SYSTEM_PATH -eq 0 ] ; then
     # Figure out where the library is installed. First try the path
     # that was used when building gtk3-nocsd, then try the directory
     # the binary is installed.
-    INSTALLED_PATH="@@libdir@@"
     BINARY_PATH="${GTK3_NOCSD_BINARY%/*}"
     GTK3_NOCSD=""
-    for _path in "$INSTALLED_PATH" "$BINARY_PATH" "${BINARY_PATH%/bin}/lib" ; do
+    for _path in "/usr/lib64" "/usr/lib" "$BINARY_PATH" "${BINARY_PATH%/bin}/lib" ; do
         if [ -e "${_path}/${GTK3_NOCSD_NAME}" ] ; then
             GTK3_NOCSD="${_path}/${GTK3_NOCSD_NAME}"
             break