diff --git a/opal/util/Makefile.am b/opal/util/Makefile.am
index 76bef717b6..6abdfa66c7 100644
--- a/opal/util/Makefile.am
+++ b/opal/util/Makefile.am
@@ -112,8 +112,8 @@ libopalutil_la_SOURCES = \
         strncpy.c \
         sys_limits.c \
         uri.c \
- 	info_subscriber.c \
- 	info.c
+        info_subscriber.c \
+        info.c
 
 if OPAL_COMPILE_TIMING
 libopalutil_la_SOURCES += timings.c