diff --git a/src/crypto/common.h b/src/crypto/common.h
index 825b43097..6e9d6dc82 100644
--- a/src/crypto/common.h
+++ b/src/crypto/common.h
@@ -82,12 +82,12 @@ void static inline WriteBE64(unsigned char* ptr, uint64_t x)
 /** Return the smallest number n such that (x >> n) == 0 (or 64 if the highest bit in x is set. */
 uint64_t static inline CountBits(uint64_t x)
 {
-#ifdef HAVE_DECL___BUILTIN_CLZL
+#if HAVE_DECL___BUILTIN_CLZL
     if (sizeof(unsigned long) >= sizeof(uint64_t)) {
         return x ? 8 * sizeof(unsigned long) - __builtin_clzl(x) : 0;
     }
 #endif
-#ifdef HAVE_DECL___BUILTIN_CLZLL
+#if HAVE_DECL___BUILTIN_CLZLL
     if (sizeof(unsigned long long) >= sizeof(uint64_t)) {
         return x ? 8 * sizeof(unsigned long long) - __builtin_clzll(x) : 0;
     }