diff --git a/imp_1199.xml b/imp_1199.xml
index 594b012..7bbb939 100644
--- a/imp_1199.xml
+++ b/imp_1199.xml
@@ -41,10 +41,9 @@
 
       #define IMP_LENGTH(a) (sizeof(a) / sizeof(float))
 
+      static void impulse2freq(int id, float *imp, unsigned int length, fftw_real *out);
       #define MK_IMP(i) impulse2freq(c, i, IMP_LENGTH(i), impulse_freq[c]); c++
 
-      static inline void impulse2freq(int id, float *imp, unsigned int length, fftw_real *out);
-
       #include "impulses/all.h"
 
       fft_plan plan_rc[IMPULSES],
@@ -54,11 +53,7 @@
 
       unsigned int fft_length[IMPULSES];
 
-#ifdef __clang__
       static void impulse2freq(int id, float *imp, unsigned int length, fftw_real *out)
-#else
-      static inline void impulse2freq(int id, float *imp, unsigned int length, fftw_real *out)
-#endif
       {
         fftw_real impulse_time[MAX_FFT_LENGTH];
 #ifdef FFTW3