diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 256fc9983efa..73c7e9d4aa43 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -1317,29 +1317,29 @@ rustc_data_structures::external_bitflags_debug! { SanitizerSet }
 
 impl SanitizerSet {
     const MUTUALLY_EXCLUSIVE: &'static [(SanitizerSet, SanitizerSet)] = &[
-        (SanitizerSet::MEMORY, SanitizerSet::ADDRESS),
-        (SanitizerSet::MEMORY, SanitizerSet::LEAK),
-        (SanitizerSet::THREAD, SanitizerSet::ADDRESS),
-        (SanitizerSet::THREAD, SanitizerSet::LEAK),
-        (SanitizerSet::THREAD, SanitizerSet::MEMORY),
-        (SanitizerSet::HWADDRESS, SanitizerSet::ADDRESS),
-        (SanitizerSet::HWADDRESS, SanitizerSet::MEMORY),
-        (SanitizerSet::HWADDRESS, SanitizerSet::THREAD),
-        (SanitizerSet::MEMTAG, SanitizerSet::ADDRESS),
-        (SanitizerSet::MEMTAG, SanitizerSet::HWADDRESS),
-        (SanitizerSet::KCFI, SanitizerSet::CFI),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::ADDRESS),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::LEAK),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::MEMORY),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::THREAD),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::HWADDRESS),
-        (SanitizerSet::KERNELADDRESS, SanitizerSet::MEMTAG),
-        (SanitizerSet::SAFESTACK, SanitizerSet::ADDRESS),
-        (SanitizerSet::SAFESTACK, SanitizerSet::LEAK),
-        (SanitizerSet::SAFESTACK, SanitizerSet::MEMORY),
-        (SanitizerSet::SAFESTACK, SanitizerSet::THREAD),
-        (SanitizerSet::SAFESTACK, SanitizerSet::HWADDRESS),
-        (SanitizerSet::SAFESTACK, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::ADDRESS, SanitizerSet::MEMORY),
+        (SanitizerSet::ADDRESS, SanitizerSet::THREAD),
+        (SanitizerSet::ADDRESS, SanitizerSet::HWADDRESS),
+        (SanitizerSet::ADDRESS, SanitizerSet::MEMTAG),
+        (SanitizerSet::ADDRESS, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::ADDRESS, SanitizerSet::SAFESTACK),
+        (SanitizerSet::LEAK, SanitizerSet::MEMORY),
+        (SanitizerSet::LEAK, SanitizerSet::THREAD),
+        (SanitizerSet::LEAK, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::LEAK, SanitizerSet::SAFESTACK),
+        (SanitizerSet::MEMORY, SanitizerSet::THREAD),
+        (SanitizerSet::MEMORY, SanitizerSet::HWADDRESS),
+        (SanitizerSet::MEMORY, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::MEMORY, SanitizerSet::SAFESTACK),
+        (SanitizerSet::THREAD, SanitizerSet::HWADDRESS),
+        (SanitizerSet::THREAD, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::THREAD, SanitizerSet::SAFESTACK),
+        (SanitizerSet::HWADDRESS, SanitizerSet::MEMTAG),
+        (SanitizerSet::HWADDRESS, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::HWADDRESS, SanitizerSet::SAFESTACK),
+        (SanitizerSet::CFI, SanitizerSet::KCFI),
+        (SanitizerSet::MEMTAG, SanitizerSet::KERNELADDRESS),
+        (SanitizerSet::KERNELADDRESS, SanitizerSet::SAFESTACK),
     ];
 
     /// Return sanitizer's name
diff --git a/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.aarch64.stderr b/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.aarch64.stderr
index 1006c3bc17ef..7f596a19104e 100644
--- a/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.aarch64.stderr
+++ b/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.aarch64.stderr
@@ -2,9 +2,5 @@ error: cfi sanitizer is not supported for this target
 
 error: `-Zsanitizer=cfi` is incompatible with `-Zsanitizer=kcfi`
 
-error: `-Zsanitizer=cfi` is incompatible with `-Zsanitizer=kcfi`
-   |
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
-
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
diff --git a/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.x86_64.stderr b/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.x86_64.stderr
index 1006c3bc17ef..7f596a19104e 100644
--- a/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.x86_64.stderr
+++ b/tests/ui/sanitizer/cfi-is-incompatible-with-kcfi.x86_64.stderr
@@ -2,9 +2,5 @@ error: cfi sanitizer is not supported for this target
 
 error: `-Zsanitizer=cfi` is incompatible with `-Zsanitizer=kcfi`
 
-error: `-Zsanitizer=cfi` is incompatible with `-Zsanitizer=kcfi`
-   |
-   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
-
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors