diff --git a/makefiles/libc/picolibc.mk b/makefiles/libc/picolibc.mk
index c7d1ba8b62..94263d082b 100644
--- a/makefiles/libc/picolibc.mk
+++ b/makefiles/libc/picolibc.mk
@@ -16,6 +16,10 @@ ifeq (1,$(USE_PICOLIBC))
   LINKFLAGS += -Wl,--defsym=__heap_end=_eheap
   LINKFLAGS += -Wl,--defsym=__heap_start=_sheap
   CFLAGS += -specs=picolibc.specs
+  ifeq (,$(filter printf_float scanf_float,$(USEMODULE)))
+   CFLAGS += -DPICOLIBC_INTEGER_PRINTF_SCANF
+   LINKFLAGS += -DPICOLIBC_INTEGER_PRINTF_SCANF
+  endif
 endif
 
 LINKFLAGS += -lc