diff --git a/reactos/lib/sdk/crt/mbstring/mbscspn.c b/reactos/lib/sdk/crt/mbstring/mbscspn.c
index 02d69d68388..e6be7e9ea64 100644
--- a/reactos/lib/sdk/crt/mbstring/mbscspn.c
+++ b/reactos/lib/sdk/crt/mbstring/mbscspn.c
@@ -18,12 +18,11 @@
 size_t _mbscspn (const unsigned char *str1, const unsigned char *str2)
 {
     int c;
-    unsigned char *ptr;
     const unsigned char *save = str1;
 
     while ((c = _mbsnextc (str1))) {
 
-	if ((ptr = _mbschr (str2, c)))
+	if (_mbschr (str2, c))
 	    break;
 
 	str1 = _mbsinc ((unsigned char *) str1);
diff --git a/reactos/lib/sdk/crt/mbstring/mbsspn.c b/reactos/lib/sdk/crt/mbstring/mbsspn.c
index 72ee3e2a41b..8722c97c2de 100644
--- a/reactos/lib/sdk/crt/mbstring/mbsspn.c
+++ b/reactos/lib/sdk/crt/mbstring/mbsspn.c
@@ -18,12 +18,11 @@
 size_t _mbsspn (const unsigned char *str1, const unsigned char *str2)
 {
     int c;
-    unsigned char *ptr;
     const unsigned char *save = str1;
 
     while ((c = _mbsnextc (str1))) {
 
-	if ((ptr = _mbschr (str2, c)) == 0)
+	if (_mbschr (str2, c) == 0)
 	    break;
 
 	str1 = _mbsinc ((unsigned char *) str1);
diff --git a/reactos/lib/sdk/crt/mbstring/mbsspnp.c b/reactos/lib/sdk/crt/mbstring/mbsspnp.c
index 36b903d1e4f..9121cb0edb4 100644
--- a/reactos/lib/sdk/crt/mbstring/mbsspnp.c
+++ b/reactos/lib/sdk/crt/mbstring/mbsspnp.c
@@ -7,11 +7,10 @@
 unsigned char *_mbsspnp (const unsigned char *str1, const unsigned char *str2)
 {
     int c;
-    unsigned char *ptr;
 
     while ((c = _mbsnextc (str1))) {
 
-	if ((ptr = _mbschr (str2, c)) == 0)
+	if (_mbschr (str2, c) == 0)
 	    return (unsigned char *) str1;
 
 	str1 = _mbsinc ((unsigned char *) str1);