diff --git a/configure b/configure
index 568533f824..7d6f0e69df 100755
--- a/configure
+++ b/configure
@@ -37994,7 +37994,7 @@ CXXFLAGS=`echo $WXCONFIG_CXXFLAGS $CXXWARNINGS $C_AND_CXX_FLAGS $CXXFLAGS `
 OBJCFLAGS=`echo $WXCONFIG_CFLAGS $CWARNINGS $C_AND_CXX_FLAGS $OBJCFLAGS `
 OBJCXXFLAGS=`echo $WXCONFIG_CXXFLAGS $C_AND_CXX_FLAGS $OBJCXXFLAGS `
 
-if test "SHARED" = 1; then
+if test "$SHARED" = 1; then
     WXCONFIG_CPPFLAGS="$WXCONFIG_CPPFLAGS -DWXUSINGDLL"
 fi
 
diff --git a/configure.in b/configure.in
index 3ff854e79d..a86ee9f33e 100644
--- a/configure.in
+++ b/configure.in
@@ -8105,7 +8105,7 @@ OBJCXXFLAGS=`echo $WXCONFIG_CXXFLAGS $C_AND_CXX_FLAGS $OBJCXXFLAGS `
 
 dnl now that we added WXCONFIG_CPPFLAGS to CPPFLAGS we can add the wx-config
 dnl only stuff to it
-if test "SHARED" = 1; then
+if test "$SHARED" = 1; then
     WXCONFIG_CPPFLAGS="$WXCONFIG_CPPFLAGS -DWXUSINGDLL"
 fi