diff --git a/Changes b/Changes
index 045de1f7e..921647530 100644
--- a/Changes
+++ b/Changes
@@ -9,6 +9,8 @@ indicates the contributor was also the author of the fix; Thanks!
 
 **** Fix $signed mis-extending when input has a WIDTH violation. [Eugene Weber]
 
+**** Add M32 make variable to support -m32 compiles.  [Eugene Weber]
+
 * Verilator 3.622 10/17/2006 Stable
 
 **** Fix --skip-identical without --debug, broken in 3.621.  [Andy Meier]
diff --git a/include/verilated.mk.in b/include/verilated.mk.in
index 716889335..58d634efa 100644
--- a/include/verilated.mk.in
+++ b/include/verilated.mk.in
@@ -48,6 +48,9 @@ VPATH += $(VERILATOR_ROOT)/include
 #OPT = -ggdb -DPRINTINITSTR
 CPPFLAGS += $(OPT)
 
+CPPFLAGS += $(M32)
+LDFLAGS += $(M32)
+
 # See the benchmarking section of bin/verilator.
 # Support class optimizations.  This includes the tracing and symbol table.
 # SystemC takes minutes to optimize, thus it is off by default.