diff --git a/Makefile.am b/Makefile.am
index 43759126..3b2db72e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,16 +25,16 @@ ACLOCAL_AMFLAGS = -I m4
 # Subprojects
 DIST_SUBDIRS =           \
     src/libguac          \
-	src/guacd            \
-	src/protocols/rdp    \
-	src/protocols/ssh    \
-	src/protocols/vnc    \
+    src/guacd            \
+    src/protocols/rdp    \
+    src/protocols/ssh    \
+    src/protocols/vnc    \
     tests
 
 SUBDIRS =       \
     src/libguac \
     src/common  \
-	src/guacd   \
+    src/guacd   \
     tests
 
 if ENABLE_RDP