diff --git a/hostapd/Makefile b/hostapd/Makefile
index a812b9d66..67b025b28 100644
--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -18,6 +18,16 @@ export BINDIR ?= /usr/local/bin/
 
 -include .config
 
+ifndef CONFIG_NO_GITVER
+# Add VERSION_STR postfix for builds from a git repository
+ifeq ($(wildcard ../.git),../.git)
+GITVER := $(shell git describe --dirty=+)
+ifneq ($(GITVER),)
+CFLAGS += -DGIT_VERSION_STR_POSTFIX=\"-$(GITVER)\"
+endif
+endif
+endif
+
 ifdef CONFIG_TESTING_OPTIONS
 CFLAGS += -DCONFIG_TESTING_OPTIONS
 CONFIG_WPS_TESTING=y
diff --git a/src/common/version.h b/src/common/version.h
index 14cf8103e..ae5c9d4c4 100644
--- a/src/common/version.h
+++ b/src/common/version.h
@@ -5,6 +5,10 @@
 #define VERSION_STR_POSTFIX ""
 #endif /* VERSION_STR_POSTFIX */
 
-#define VERSION_STR "2.6-devel" VERSION_STR_POSTFIX
+#ifndef GIT_VERSION_STR_POSTFIX
+#define GIT_VERSION_STR_POSTFIX ""
+#endif /* GIT_VERSION_STR_POSTFIX */
+
+#define VERSION_STR "2.6-devel" VERSION_STR_POSTFIX GIT_VERSION_STR_POSTFIX
 
 #endif /* VERSION_H */
diff --git a/wpa_supplicant/Makefile b/wpa_supplicant/Makefile
index 4cf00e823..0129031e4 100644
--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
@@ -17,6 +17,16 @@ CFLAGS += -I$(abspath ../src/utils)
 
 -include .config
 
+ifndef CONFIG_NO_GITVER
+# Add VERSION_STR postfix for builds from a git repository
+ifeq ($(wildcard ../.git),../.git)
+GITVER := $(shell git describe --dirty=+)
+ifneq ($(GITVER),)
+CFLAGS += -DGIT_VERSION_STR_POSTFIX=\"-$(GITVER)\"
+endif
+endif
+endif
+
 ifdef CONFIG_TESTING_OPTIONS
 CFLAGS += -DCONFIG_TESTING_OPTIONS
 CONFIG_WPS_TESTING=y