diff --git a/src/index/blockfilterindex.h b/src/index/blockfilterindex.h
index 77b87ff4765..12b5741138d 100644
--- a/src/index/blockfilterindex.h
+++ b/src/index/blockfilterindex.h
@@ -25,7 +25,7 @@ class BlockFilter;
 class CBlockIndex;
 enum class BlockFilterType : uint8_t;
 
-static const char* const DEFAULT_BLOCKFILTERINDEX = "0";
+inline constexpr const char* DEFAULT_BLOCKFILTERINDEX{"0"};
 
 /** Interval between compact filter checkpoints. See BIP 157. */
 inline constexpr int CFCHECKPT_INTERVAL = 1000;
diff --git a/src/univalue/include/univalue_escapes.h b/src/univalue/include/univalue_escapes.h
index 7f4d89b09dc..edce915c7d0 100644
--- a/src/univalue/include/univalue_escapes.h
+++ b/src/univalue/include/univalue_escapes.h
@@ -5,7 +5,7 @@
 
 #ifndef BITCOIN_UNIVALUE_INCLUDE_UNIVALUE_ESCAPES_H
 #define BITCOIN_UNIVALUE_INCLUDE_UNIVALUE_ESCAPES_H
-static const char *escapes[256] = {
+inline constexpr const char* escapes[256]{
     "\\u0000",
     "\\u0001",
     "\\u0002",