diff --git a/legacy/ephysics/data/Makefile.am b/legacy/ephysics/data/Makefile.am
index a52a0c023f..089d52d216 100644
--- a/legacy/ephysics/data/Makefile.am
+++ b/legacy/ephysics/data/Makefile.am
@@ -1,3 +1,7 @@
 MAINTAINERCLEANFILES = Makefile.in
 
+if BUILD_TESTS
+
 SUBDIRS = logo_images themes
+
+endif