diff --git a/math/Makefile b/math/Makefile
index b1739ab416..e17bc50df3 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -643,7 +643,7 @@ include $(o-iterator)
 
 # We don't want the fdlibm code to use the inline math functions,
 # only the fdlibm code.
-math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
+math-CPPFLAGS += -D__NO_MATH_INLINES
 
 ifneq ($(long-double-fcts),yes)
 # The `double' and `long double' types are the same on this machine.
diff --git a/math/test-math-inline.h b/math/test-math-inline.h
index 755be44f35..c522236e3e 100644
--- a/math/test-math-inline.h
+++ b/math/test-math-inline.h
@@ -20,7 +20,6 @@
 #define TEST_ERRNO 0
 #define TEST_EXCEPTIONS 0
 
-#undef __LIBC_INTERNAL_MATH_INLINES
 #ifdef __NO_MATH_INLINES
 # undef __NO_MATH_INLINES
 #endif
diff --git a/math/test-signgam-main.c b/math/test-signgam-main.c
index b36e942c9b..19ca2bc7af 100644
--- a/math/test-signgam-main.c
+++ b/math/test-signgam-main.c
@@ -17,7 +17,6 @@
    <https://www.gnu.org/licenses/>.  */
 
 #undef _LIBC
-#undef __LIBC_INTERNAL_MATH_INLINES
 #undef _GNU_SOURCE
 
 #include <math.h>