diff --git a/Makefile.am b/Makefile.am
index 28eef125..e63749ad 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -353,7 +353,7 @@ test_apps = \
 	tests/test_atomics \
 	tests/test_client_server \
 	tests/test_server_drop_more \
-	tests/test_client_drop_more \ 
+	tests/test_client_drop_more \
 	tests/test_thread_safe
 
 tests_test_system_SOURCES = tests/test_system.cpp
@@ -535,7 +535,7 @@ tests_test_server_drop_more_LDADD = src/libzmq.la
 tests_test_client_drop_more_SOURCES = tests/test_client_drop_more.cpp
 tests_test_client_drop_more_LDADD = src/libzmq.la
 
-tests_test_thread_safe_SOURCES = tests/test_thread_safe.cpp							
+tests_test_thread_safe_SOURCES = tests/test_thread_safe.cpp
 tests_test_thread_safe_LDADD = src/libzmq.la