diff --git a/ChangeLog b/ChangeLog
index 4ff0772..98779fc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
         ========================
 
         Update end-user documentation
+        Ignore errors in El Capitan post processing (#1605)
         Change GException to RuntimeError in cscripts (#1604)
         Adapt to GammaLib interface changs (#1603)
         Implement handling of stacked data in csspec (#1566)
diff --git a/NEWS b/NEWS
index 05c5207..8f71a70 100644
--- a/NEWS
+++ b/NEWS
@@ -17,7 +17,8 @@ version 1.0.0 or above.
 A special post processing of the Python module libraries has been added for
 Mac OS X 10.11 and higher (El Capitan). This post processing is a replacement for
 setting DYLD_LIBRARY_PATH during unit testing since the environment variable is
-ignored in certain circumstances by El Capitan.
+ignored in certain circumstances by El Capitan. Any errors that occur in the
+post-processing will be ignored.
 
 
 3. Python interface
diff --git a/pyext/Makefile.am b/pyext/Makefile.am
index a016362..0916392 100755
--- a/pyext/Makefile.am
+++ b/pyext/Makefile.am
@@ -95,7 +95,7 @@ all-local: build
 build: ctools/tools_wrap.cpp ctools/tools.py
 	$(PYTHON) setup.py build
 if IS_ELCAPITAN
-	for f in build/ctools/ctools/_*.so; do \
+	-for f in build/ctools/ctools/_*.so; do \
 		echo "Post process module "$$f; \
 		install_name_tool -change $(libdir)/libctools.0.dylib @rpath/libctools.0.dylib $$f; \
 		install_name_tool -change $(libdir)/libgamma.0.dylib @rpath/libgamma.0.dylib $$f; \