diff --git a/gcc/config/i386/x-cygwin32 b/gcc/config/i386/x-cygwin32
index d738a8dfca67..5e796a0e9165 100644
--- a/gcc/config/i386/x-cygwin32
+++ b/gcc/config/i386/x-cygwin32
@@ -2,6 +2,3 @@
 STMP_FIXPROTO =
 # Don't need collect2
 USE_COLLECT2 =
-# We use .exe.
-exeext=.exe
-
diff --git a/gcc/config/rs6000/x-cygwin32 b/gcc/config/rs6000/x-cygwin32
index fd94e87622bd..5e796a0e9165 100644
--- a/gcc/config/rs6000/x-cygwin32
+++ b/gcc/config/rs6000/x-cygwin32
@@ -2,5 +2,3 @@
 STMP_FIXPROTO =
 # Don't need collect2
 USE_COLLECT2 =
-# We use .exe.
-exeext=.exe