diff --git a/boards/sim/sim/sim/configs/cxxtest/Make.defs b/boards/sim/sim/sim/configs/cxxtest/Make.defs
index 01402cd2541..7146e1ad712 100644
--- a/boards/sim/sim/sim/configs/cxxtest/Make.defs
+++ b/boards/sim/sim/sim/configs/cxxtest/Make.defs
@@ -125,6 +125,7 @@ ifeq ($(CONFIG_SIM_M32),y)
   LDLINKFLAGS += -melf_i386
   CCLINKFLAGS += -m32
   LDFLAGS += -m32
+  HOSTLDFLAGS += -m32
 endif
 
 MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
@@ -133,4 +134,3 @@ HOSTCC = gcc
 HOSTINCLUDES = -I.
 HOSTCFLAGS = $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
    $(ARCHCPUFLAGS) $(HOSTINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
-HOSTLDFLAGS =
diff --git a/boards/sim/sim/sim/configs/nsh2/Make.defs b/boards/sim/sim/sim/configs/nsh2/Make.defs
index e4460094c28..e329be3f6d1 100644
--- a/boards/sim/sim/sim/configs/nsh2/Make.defs
+++ b/boards/sim/sim/sim/configs/nsh2/Make.defs
@@ -116,7 +116,8 @@ endif
 ifeq ($(CONFIG_SIM_M32),y)
   LDLINKFLAGS		+= -melf_i386
   CCLINKFLAGS		+= -m32
-  LDFLAGS			+= -m32
+  LDFLAGS		+= -m32
+  HOSTLDFLAGS		+= -m32
 endif
 
 
@@ -126,4 +127,3 @@ HOSTCC			= gcc
 HOSTINCLUDES		= -I.
 HOSTCFLAGS		= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(HOSTINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
-HOSTLDFLAGS		=
diff --git a/boards/sim/sim/sim/scripts/Make.defs b/boards/sim/sim/sim/scripts/Make.defs
index 52c60163291..94d53bb8726 100644
--- a/boards/sim/sim/sim/scripts/Make.defs
+++ b/boards/sim/sim/sim/scripts/Make.defs
@@ -124,6 +124,7 @@ ifeq ($(CONFIG_SIM_M32),y)
   LDLINKFLAGS += -melf_i386
   CCLINKFLAGS += -m32
   LDFLAGS += -m32
+  HOSTLDFLAGS += -m32
 endif
 
 
@@ -133,4 +134,3 @@ HOSTCC = gcc
 HOSTINCLUDES = -I.
 HOSTCFLAGS = $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
    $(ARCHCPUFLAGS) $(HOSTINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
-HOSTLDFLAGS =