diff --git a/src/modules/zlibmod/testsuite.in b/src/modules/zlibmod/testsuite.in
index 80f70561ca84b209c8b6d18bf8b0b3e040933209..9b138fb7ec22fd7dad3f8d0bd1dd9902e5718fc5 100644
--- a/src/modules/zlibmod/testsuite.in
+++ b/src/modules/zlibmod/testsuite.in
@@ -1,2 +1,5 @@
-test_true(Gz_deflate())
-test_true(Gz_inflate())
+cond([[ master()->programs["/precompiled/gz_inflate"] ]],
+[[
+  test_true(Gz_deflate())
+  test_true(Gz_inflate())
+]])