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-rw-r--r--src/afl-sharedmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/afl-sharedmem.c b/src/afl-sharedmem.c
index 63013435..f8bbebc8 100644
--- a/src/afl-sharedmem.c
+++ b/src/afl-sharedmem.c
@@ -145,7 +145,7 @@ u8 *afl_shm_init(sharedmem_t *shm, size_t map_size,
 
   if (!non_instrumented_mode) setenv(SHM_ENV_VAR, shm->g_shm_file_path, 1);
 
-  if (shm->map == -1 || !shm->map) PFATAL("mmap() failed");
+  if (shm->map == (void *)-1 || !shm->map) PFATAL("mmap() failed");
 
 #else
   u8 *shm_str;