diff --git a/CMakeLists.txt b/CMakeLists.txt
index 74610ab6b09..4e434780a12 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -218,6 +218,11 @@ if (WHISPER_OPENBLAS)
         set(WHISPER_BLAS_LIB "openblas")
     endif ()
     set(BLA_PKGCONFIG_BLAS ${WHISPER_BLAS_LIB})
+    # OpenBLAS prebuilt libraries for Windows do not have "64" suffix in filename.
+    # (But .pc file has "64" suffix in filename for USE_64BITINT=1 Windows build.)
+    if (MSVC)
+        set(WHISPER_BLAS_LIB "openblas")
+    endif ()
 endif()
 
 if (WHISPER_BLAS)