diff --git a/Makefile.def b/Makefile.def
index 35e994e..9de107c 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -165,7 +165,7 @@ target_modules = { module= newlib; };
 target_modules = { module= libgcc; bootstrap=true; no_check=true;
 		  missing=TAGS;
 		  missing=install-dvi; };
-target_modules = { module= libbacktrace; bootstrap=true; };
+target_modules = { module= libbacktrace; };
 target_modules = { module= libquadmath; };
 target_modules = { module= libgfortran; };
 target_modules = { module= libobjc;
@@ -189,7 +189,7 @@ target_modules = { module= libada; };
 target_modules = { module= libgm2; lib_path=.libs; };
 target_modules = { module= libgomp; bootstrap= true; lib_path=.libs; };
 target_modules = { module= libitm; lib_path=.libs; };
-target_modules = { module= libatomic; bootstrap=true; lib_path=.libs; };
+target_modules = { module= libatomic; lib_path=.libs; };
 
 // These are (some of) the make targets to be done in each subdirectory.
 // Not all; these are the ones which don't have special options.