diff --git a/gnu/dist/binutils/bfd/configure.host b/gnu/dist/binutils/bfd/configure.host
index 634b0b12376d..9ce2f1c24e9e 100644
--- a/gnu/dist/binutils/bfd/configure.host
+++ b/gnu/dist/binutils/bfd/configure.host
@@ -60,6 +60,10 @@ mips*-*-riscos*)	HDEFINES="-G 4" ;;
 
 m68*-hp-hpux*)		HDEFINES=-DHOST_HP300HPUX ;;
 
+sparc64*-*-netbsd*)	host64=true; HOST_64BIT_TYPE=long ;;
+
+x86_64*-*-netbsd*)	host64=true; HOST_64BIT_TYPE=long ;;
+
 *-*-aix*)		HOST_64BIT_TYPE="long long"
 			HOST_U_64BIT_TYPE="unsigned long long"
 			;;