diff --git a/lex.c b/lex.c
index 6699711..8cd6adb 100644
--- a/lex.c
+++ b/lex.c
@@ -144,7 +144,7 @@ enum LexToken LexGetNumber(struct LexState *Lexer, struct Value *Value)
                 { Base = 16; Lexer->Pos++; }
             else if (*Lexer->Pos == 'b' || *Lexer->Pos == 'B')
                 { Base = 2; Lexer->Pos++; }
-            else
+            else if (*Lexer->Pos != '.')
                 Base = 8;
         }
     }
diff --git a/platform.h b/platform.h
index 4194360..ae19ec9 100644
--- a/platform.h
+++ b/platform.h
@@ -48,7 +48,7 @@
 # ifndef NO_FP
 # include <math.h>
 # define PICOC_MATH_LIBRARY
-# define NEED_MATH_LIBRARY
+# undef NEED_MATH_LIBRARY
 # undef BIG_ENDIAN
 #endif