diff --git a/src/lib/util/io/Makefile.am b/src/lib/util/io/Makefile.am
index 96b9d25c7b..2c3ed9640d 100644
--- a/src/lib/util/io/Makefile.am
+++ b/src/lib/util/io/Makefile.am
@@ -13,7 +13,7 @@ CLEANFILES = *.gcno *.gcda
 pyexec_LTLIBRARIES = libutil_io_python.la
 # Python prefers .so, while some OSes (specifically MacOS) use a different
 # suffix for dynamic objects.  -module is necessary to work this around.
-libutil_io_python_la_LDFLAGS = -module
+libutil_io_python_la_LDFLAGS = -module -avoid-version
 libutil_io_python_la_SOURCES = fdshare_python.cc
 libutil_io_python_la_LIBADD = libutil_io.la
 libutil_io_python_la_CPPFLAGS = $(AM_CPPFLAGS) $(PYTHON_INCLUDES)
diff --git a/src/lib/util/pyunittests/Makefile.am b/src/lib/util/pyunittests/Makefile.am
index dd2d39ac1a..93b0748b77 100644
--- a/src/lib/util/pyunittests/Makefile.am
+++ b/src/lib/util/pyunittests/Makefile.am
@@ -13,7 +13,7 @@ pyunittests_util_la_CXXFLAGS = $(AM_CXXFLAGS) $(PYTHON_CXXFLAGS)
 
 # Python prefers .so, while some OSes (specifically MacOS) use a different
 # suffix for dynamic objects.  -module is necessary to work this around.
-pyunittests_util_la_LDFLAGS += -module
+pyunittests_util_la_LDFLAGS += -module -avoid-version
 pyunittests_util_la_LIBADD = $(top_builddir)/src/lib/util/libutil.la
 pyunittests_util_la_LIBADD += $(PYTHON_LIB)