diff --git a/tdegtk/Makefile.am b/tdegtk/Makefile.am
index 59d6c56..abc1c82 100644
--- a/tdegtk/Makefile.am
+++ b/tdegtk/Makefile.am
@@ -36,7 +36,7 @@ source_c = \
 	$(srcdir)/tdegtk-baseengine.cpp \
 	$(srcdir)/tdegtk-theme.cpp
 
-enginedir = $(GTK3_PREFIX)/$(GTK3_LIBDIR)/gtk-3.0/$(GTK3_VERSION)/theming-engines
+enginedir = $(GTK3_LIBDIR)/gtk-3.0/$(GTK3_VERSION)/theming-engines
 engine_LTLIBRARIES = libtdegtk.la
 
 libtdegtk_la_SOURCES = $(source_h) $(source_c)