diff --git a/externals/simplecpp/simplecpp.cpp b/externals/simplecpp/simplecpp.cpp
index 2eabaf4a8..9fd88d281 100644
--- a/externals/simplecpp/simplecpp.cpp
+++ b/externals/simplecpp/simplecpp.cpp
@@ -768,7 +768,7 @@ void simplecpp::TokenList::combineOperators()
             if (tok->previous && tok->previous->number) {
                 tok->setstr(tok->previous->str() + '.');
                 deleteToken(tok->previous);
-                if (isFloatSuffix(tok->next) || (tok->next && tok->next->startsWithOneOf("Ee"))) {
+                if (isFloatSuffix(tok->next) || (tok->next && tok->next->startsWithOneOf("AaBbCcDdEeFfPp"))) {
                     tok->setstr(tok->str() + tok->next->str());
                     deleteToken(tok->next);
                 }