diff --git a/tests/string/strpbrk.c b/tests/string/strpbrk.c
index 40cae665b1330a94bf5d899dd888f1f12529ff6a..dc0ebf7c534c1a92ea997a7aa212f8227c2cfc5d 100644
--- a/tests/string/strpbrk.c
+++ b/tests/string/strpbrk.c
@@ -2,20 +2,19 @@
 #include <stdio.h>
 
 int main(int argc, char* argv[]) {
-    char* str = "The quick drawn fix jumps over the lazy bug";
+    char* source = "The quick drawn fix jumps over the lazy bug";
 
     // should be "The quick drawn fix jumps over the lazy bug"
-    char* str1 = strpbrk(str, "From The Very Beginning");
-    printf("%s\n", (str1) ? str1 : "NULL"); 
+    char* res1 = strpbrk(source, "From The Very Beginning");
+    printf("%s\n", (res1) ? res1 : "NULL"); 
 
     // should be "lazy bug"
-    char* str2 = strpbrk(str, "lzbg");
-    printf("%s\n", (str2) ? str2 : "NULL"); 
-
+    char* res2 = strpbrk(source, "lzbg");
+    printf("%s\n", (res2) ? res2 : "NULL"); 
 
     // should be "NULL"
-    char* str3 = strpbrk(str, "404");
-    printf("%s\n", (str3) ? str3 : "NULL"); 
+    char* res3 = strpbrk(source, "404");
+    printf("%s\n", (res3) ? res3 : "NULL"); 
 
     return 0;
 }
diff --git a/tests/string/strstr.c b/tests/string/strstr.c
index 1f6796a2f1609ab1c35b5bbe62bea8e6e7b10f49..6a074d18d83ca3c3fec9aa676866f171c84335de 100644
--- a/tests/string/strstr.c
+++ b/tests/string/strstr.c
@@ -3,16 +3,16 @@
 
 int main(int argc, char* argv[]) {
     // should be "rust"
-    char* str1 = strstr("In relibc we trust", "rust");
-    printf("%s\n", (str1) ? str1 : "NULL"); 
+    char* res1 = strstr("In relibc we trust", "rust");
+    printf("%s\n", (res1) ? res1 : "NULL"); 
 
     // should be "libc we trust"
-    char* str2 = strstr("In relibc we trust", "libc");
-    printf("%s\n", (str2) ? str2 : "NULL"); 
+    char* res2 = strstr("In relibc we trust", "libc");
+    printf("%s\n", (res2) ? res2 : "NULL"); 
 
     // should be "NULL"
-    char* str3 = strstr("In relibc we trust", "bugs");
-    printf("%s\n", (str3) ? str3 : "NULL"); 
+    char* res3 = strstr("In relibc we trust", "bugs");
+    printf("%s\n", (res3) ? res3 : "NULL"); 
 
     return 0;
 }