diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf

index e7e6ee1..ff2a939 100644

--- a/mkspecs/common/gcc-base.conf

+++ b/mkspecs/common/gcc-base.conf

@@ -32,7 +32,7 @@

 #

 QMAKE_CFLAGS_OPTIMIZE      = -O2

-QMAKE_CFLAGS_OPTIMIZE_FULL = -O3

+QMAKE_CFLAGS_OPTIMIZE_FULL = -O2

 QMAKE_CFLAGS_OPTIMIZE_DEBUG = -Og

 QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os