diff --git a/ompi/mca/btl/mx/Makefile.am b/ompi/mca/btl/mx/Makefile.am
index f0adc8e362..0b20d4e53e 100644
--- a/ompi/mca/btl/mx/Makefile.am
+++ b/ompi/mca/btl/mx/Makefile.am
@@ -27,8 +27,7 @@ sources = \
     btl_mx_frag.c \
     btl_mx_frag.h \
     btl_mx_proc.c \
-    btl_mx_proc.h \
-    btl_mx_error.h
+    btl_mx_proc.h
      
 # Make the output library in this directory, and name it either
 # mca_<type>_<name>.la (for DSO builds) or libmca_<type>_<name>.la