diff --git a/src/pc/mods/mods_utils.c b/src/pc/mods/mods_utils.c
index e04cfa1b1..833768ae5 100644
--- a/src/pc/mods/mods_utils.c
+++ b/src/pc/mods/mods_utils.c
@@ -44,8 +44,8 @@ static bool mods_incompatible_match(struct Mod* a, struct Mod* b) {
         return false;
     }
 
-    char* ai = a->incompatible;
-    char* bi = b->incompatible;
+    char* ai = strdup(a->incompatible);
+    char* bi = strdup(b->incompatible);
     char* atoken = NULL;
     char* btoken = NULL;
     char* arest = NULL;
@@ -59,6 +59,9 @@ static bool mods_incompatible_match(struct Mod* a, struct Mod* b) {
         }
     }
 
+    free(ai);
+    free(bi);
+
     return false;
 }
 
@@ -330,4 +333,4 @@ bool directory_sanity_check(struct dirent* dir, char* dirPath, char* outPath) {
     }
 
     return true;
-}
\ No newline at end of file
+}