diff --git a/dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec b/dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec
index 8d87fed81ad8..12c9ac809906 100644
--- a/dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec
+++ b/dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec
@@ -293,9 +293,9 @@
 @ stub nearbyint
 @ stub nearbyintf
 @ stub nearbyintl
-@ stub nextafter
-@ stub nextafterf
-@ stub nextafterl
+@ cdecl nextafter(double double) ucrtbase.nextafter
+@ cdecl nextafterf(float float) ucrtbase.nextafterf
+@ cdecl nextafterl(double double) ucrtbase.nextafterl
 @ stub nexttoward
 @ stub nexttowardf
 @ stub nexttowardl
diff --git a/dlls/msvcr120/msvcr120.spec b/dlls/msvcr120/msvcr120.spec
index 3bddaf7ba092..6c0432d96421 100644
--- a/dlls/msvcr120/msvcr120.spec
+++ b/dlls/msvcr120/msvcr120.spec
@@ -2299,9 +2299,9 @@
 @ stub nearbyint
 @ stub nearbyintf
 @ stub nearbyintl
-@ stub nextafter
-@ stub nextafterf
-@ stub nextafterl
+@ cdecl nextafter(double double) MSVCRT__nextafter
+@ cdecl nextafterf(float float) MSVCRT__nextafterf
+@ cdecl nextafterl(double double) MSVCRT__nextafter
 @ stub nexttoward
 @ stub nexttowardf
 @ stub nexttowardl
diff --git a/dlls/msvcr120_app/msvcr120_app.spec b/dlls/msvcr120_app/msvcr120_app.spec
index 5883d326223e..80091c56c454 100644
--- a/dlls/msvcr120_app/msvcr120_app.spec
+++ b/dlls/msvcr120_app/msvcr120_app.spec
@@ -1962,9 +1962,9 @@
 @ stub nearbyint
 @ stub nearbyintf
 @ stub nearbyintl
-@ stub nextafter
-@ stub nextafterf
-@ stub nextafterl
+@ cdecl nextafter(double double) msvcr120.nextafter
+@ cdecl nextafterf(float float) msvcr120.nextafterf
+@ cdecl nextafterl(double double) msvcr120.nextafterl
 @ stub nexttoward
 @ stub nexttowardf
 @ stub nexttowardl
diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c
index 270bcdabf890..f8937b3c72a0 100644
--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -94,6 +94,15 @@ float CDECL MSVCRT__copysignf( float num, float sign )
     return signbit(num) ? -num : num;
 }
 
+/*********************************************************************
+ *      _nextafterf (MSVCRT.@)
+ */
+float CDECL MSVCRT__nextafterf( float num, float next )
+{
+    if (!finitef(num) || !finitef(next)) *MSVCRT__errno() = MSVCRT_EDOM;
+    return nextafterf( num, next );
+}
+
 #endif
 #if defined(__x86_64__) || defined(__arm__)
 
@@ -125,15 +134,6 @@ float CDECL MSVCRT__logbf( float num )
     return logbf(num);
 }
 
-/*********************************************************************
- *      _nextafterf (MSVCRT.@)
- */
-float CDECL MSVCRT__nextafterf( float num, float next )
-{
-    if (!finitef(num) || !finitef(next)) *MSVCRT__errno() = MSVCRT_EDOM;
-    return nextafterf( num, next );
-}
-
 /*********************************************************************
  *      MSVCRT_acosf (MSVCRT.@)
  */
diff --git a/dlls/ucrtbase/ucrtbase.spec b/dlls/ucrtbase/ucrtbase.spec
index 6079bc4a9149..34783422ce41 100644
--- a/dlls/ucrtbase/ucrtbase.spec
+++ b/dlls/ucrtbase/ucrtbase.spec
@@ -2434,9 +2434,9 @@
 @ stub nearbyint
 @ stub nearbyintf
 @ stub nearbyintl
-@ stub nextafter
-@ stub nextafterf
-@ stub nextafterl
+@ cdecl nextafter(double double) MSVCRT__nextafter
+@ cdecl nextafterf(float float) MSVCRT__nextafterf
+@ cdecl nextafterl(double double) MSVCRT__nextafter
 @ stub nexttoward
 @ stub nexttowardf
 @ stub nexttowardl