diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86e34305..914f0513 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -214,12 +214,11 @@ if(CMAKE_COMPILER_IS_GNUCC
     set(CRC_PCLMUL_SRC crc32-pclmul_asm.S)
   endif()
   set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
-  set(CMAKE_C_FLAGS_DEBUG "-g -DDEBUG")
-  set(CMAKE_CXX_FLAGS_DEBUG "-g -DDEBUG")
   set(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")
   set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG")
+  set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -DDEBUG -fno-omit-frame-pointer -fsanitize=address,undefined -DHAVE_ASAN -DHAVE_UBSAN")
   set(CMAKE_CXX_FLAGS_DEBUG
-      "${CMAKE_CXX_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,undefined -DHAVE_ASAN -DHAVE_UBSAN"
+      "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG -fno-omit-frame-pointer -fsanitize=address,undefined -DHAVE_ASAN -DHAVE_UBSAN"
   )
   set(CMAKE_LINKER_FLAGS_DEBUG
       "${CMAKE_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,undefined"
@@ -624,7 +623,7 @@ set_source_files_properties(
 
 if(NOT (CMAKE_BUILD_TYPE STREQUAL "Debug"))
   # PMP breaks Debug build
-  if(NOT (CMAKE_BUILD_TYPE STREQUAL "asan"))
+  if(NOT (CMAKE_BUILD_TYPE STREQUAL "Asan"))
     set(PMPML_SRC PMP_Multilinear.cpp PMP_Multilinear_64.cpp
                   PMP_Multilinear_test.cpp)
   endif()
diff --git a/main.cpp b/main.cpp
index dbdf52dc..dde856b2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -689,7 +689,7 @@ HashInfo g_hashes[] =
 { farmhash128_c_test,  128, FARM128_VERIF,"farmhash128_c", "farmhash128_with_seed (C99)", GOOD, {} },
 #endif
 #ifdef HAVE_AESNI
-#ifdef _MSC_VER
+#if defined _MSC_VER || defined HAVE_ASAN
 #define GX_VFY 0x9189E456
 #else
 #define GX_VFY 0x87FA3129
diff --git a/verifyall.sh b/verifyall.sh
index d02cf8ab..a4665809 100755
--- a/verifyall.sh
+++ b/verifyall.sh
@@ -2,5 +2,10 @@
 set -e
 echo build   64bit
 make -j4 -C build && build/SMHasher --verbose --test=VerifyAll
-echo build32 32bit
-make -j4 -C build32 && build32/SMHasher --verbose --test=VerifyAll
+if test -d build32; then
+    echo build32 32bit
+    make -j4 -C build32 && build32/SMHasher --verbose --test=VerifyAll
+fi
+echo build-debug with asan
+test -d build-debug || cmake -S . -B build-debug -DCMAKE_RELEASE_TYPE=Debug
+make -j4 -C build-debug && build-debug/SMHasher --verbose --test=VerifyAll