diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 798712993b8d..bfdefb61f37c 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2018-10-08  Paul Koning  <ni1d@arrl.net>
+
+	* config/pdp11/t-pdp11: Remove -mfloat32 switch.
+
 2018-10-04  Martin Liska  <mliska@suse.cz>
 
 	PR gcov-profile/84107
diff --git a/libgcc/config/pdp11/t-pdp11 b/libgcc/config/pdp11/t-pdp11
index 7cadae11a2ad..e6ba98118145 100644
--- a/libgcc/config/pdp11/t-pdp11
+++ b/libgcc/config/pdp11/t-pdp11
@@ -5,4 +5,4 @@ LIB2ADD = $(srcdir)/udivmod.c \
 	  $(srcdir)/memmove.c \
 	  $(srcdir)/memset.c
 
-HOST_LIBGCC2_CFLAGS += -O2 -mfloat32
+HOST_LIBGCC2_CFLAGS += -O2