diff --git a/configure b/configure
index 8b9a9e918c8..336c79e332f 100755
--- a/configure
+++ b/configure
@@ -2980,7 +2980,7 @@ PLUGIN_LDFLAGS		+= -Wl,-T$(srcdir)/backends/plugins/ds/plugin.ld -mthumb-interwo
 	freebsd*)
 		_plugin_prefix="lib"
 		_plugin_suffix=".so"
-		CXXFLAGS="$CXXFLAGS -fpic"
+		CXXFLAGS="$CXXFLAGS -fPIC"
 _mak_plugins='
 PLUGIN_EXTRA_DEPS =
 PLUGIN_LDFLAGS  += -shared
@@ -3024,7 +3024,7 @@ POST_OBJS_FLAGS := -Wl,-no-whole-archive
 	linux*)
 		_plugin_prefix="lib"
 		_plugin_suffix=".so"
-		CXXFLAGS="$CXXFLAGS -fpic"
+		CXXFLAGS="$CXXFLAGS -fPIC"
 		LIBS="$LIBS -ldl"
 _mak_plugins='
 PLUGIN_EXTRA_DEPS =