diff --git a/include/cantera/base/fmt.h b/include/cantera/base/fmt.h
index d11f64172..98322e4d4 100644
--- a/include/cantera/base/fmt.h
+++ b/include/cantera/base/fmt.h
@@ -3,8 +3,14 @@
 
 #if CT_USE_SYSTEM_FMT
   #include "fmt/format.h"
+  #if defined(FMT_VERSION) && FMT_VERSION >= 40000
+    #include "fmt/printf.h"
+  #endif
   #include "fmt/ostream.h"
 #else
   #include "cantera/ext/fmt/format.h"
+  #if defined(FMT_VERSION) && FMT_VERSION >= 40000
+    #include "cantera/ext/fmt/printf.h"
+  #endif
   #include "cantera/ext/fmt/ostream.h"
 #endif