diff --git a/tests/scripts/run-test-suites.pl b/tests/scripts/run-test-suites.pl
index 1f73a545e..7e2974bbc 100755
--- a/tests/scripts/run-test-suites.pl
+++ b/tests/scripts/run-test-suites.pl
@@ -41,6 +41,7 @@ die "$0: no test suite found\n" unless @suites;
 
 # in case test suites are linked dynamically
 $ENV{'LD_LIBRARY_PATH'} = '../library';
+$ENV{'DYLD_LIBRARY_PATH'} = '../library';
 
 my $prefix = $^O eq "MSWin32" ? '' : './';